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All questions of Science for DSSSB TGT/PGT/PRT Exam
The gradual disappearance of conditioned response of Salivation to bell in classical conditioning is- a)Reinforcement
- b)Spontaneous Recovery
- c)Generalization
- d)Extinction
Correct answer is option 'D'. Can you explain this answer?
The gradual disappearance of conditioned response of Salivation to bell in classical conditioning is
a)
Reinforcement
b)
Spontaneous Recovery
c)
Generalization
d)
Extinction
|
Priya Joshi answered |
Understanding Extinction in Classical Conditioning
In classical conditioning, extinction refers to the process where the conditioned response (CR), such as salivation in response to a bell, gradually diminishes and eventually disappears when the conditioned stimulus (CS) is presented without the unconditioned stimulus (US). Here’s a detailed breakdown:
Key Concepts of Extinction
- Conditioned Stimulus (CS): In this scenario, the bell acts as the CS.
- Unconditioned Stimulus (US): The food, which naturally elicits salivation, is the US.
- Conditioned Response (CR): The salivation in response to the bell is the CR.
Process of Extinction
- Repeated Presentations: During extinction, the CS (bell) is repeatedly presented without the US (food).
- Diminishing Response: Over time, the subject (e.g., a dog) learns that the bell no longer predicts food, leading to a decrease in the salivation response.
- Complete Disappearance: Eventually, the CR (salivation) may completely disappear, indicating that the association between the CS and US has been weakened.
Importance of Extinction
- Learning and Adaptation: Extinction is a critical aspect of learning, allowing organisms to adapt to changes in their environment.
- Not Permanent: It’s important to note that extinction does not erase the learned behavior; the potential for spontaneous recovery exists, where the CR may reappear after a period of rest.
In summary, the gradual disappearance of the conditioned response of salivation to the bell in classical conditioning is accurately described as extinction. This process highlights the dynamic nature of learning and the importance of ongoing experiences in shaping behavior.
In classical conditioning, extinction refers to the process where the conditioned response (CR), such as salivation in response to a bell, gradually diminishes and eventually disappears when the conditioned stimulus (CS) is presented without the unconditioned stimulus (US). Here’s a detailed breakdown:
Key Concepts of Extinction
- Conditioned Stimulus (CS): In this scenario, the bell acts as the CS.
- Unconditioned Stimulus (US): The food, which naturally elicits salivation, is the US.
- Conditioned Response (CR): The salivation in response to the bell is the CR.
Process of Extinction
- Repeated Presentations: During extinction, the CS (bell) is repeatedly presented without the US (food).
- Diminishing Response: Over time, the subject (e.g., a dog) learns that the bell no longer predicts food, leading to a decrease in the salivation response.
- Complete Disappearance: Eventually, the CR (salivation) may completely disappear, indicating that the association between the CS and US has been weakened.
Importance of Extinction
- Learning and Adaptation: Extinction is a critical aspect of learning, allowing organisms to adapt to changes in their environment.
- Not Permanent: It’s important to note that extinction does not erase the learned behavior; the potential for spontaneous recovery exists, where the CR may reappear after a period of rest.
In summary, the gradual disappearance of the conditioned response of salivation to the bell in classical conditioning is accurately described as extinction. This process highlights the dynamic nature of learning and the importance of ongoing experiences in shaping behavior.
Identify the incorrect statement (s). - Carbon monoxide is a major greenhouse.
- Methane is one of the greenhouse gas.
Choose the correct code- a)Both 1 and 2
- b)Only 1
- c)Only 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Identify the incorrect statement (s).
- Carbon monoxide is a major greenhouse.
- Methane is one of the greenhouse gas.
Choose the correct code
a)
Both 1 and 2
b)
Only 1
c)
Only 2
d)
Neither 1 nor 2
|
Jaidev Sengupta answered |
Understanding Greenhouse Gases
Greenhouse gases (GHGs) play a crucial role in climate change, with different gases having varying impacts on the atmosphere. Let's analyze the statements provided.
Statement 1: Carbon monoxide is a major greenhouse gas.
- Carbon monoxide (CO) is not classified as a significant greenhouse gas.
- It is primarily a pollutant that can impact air quality and human health.
- While it can indirectly influence climate by affecting other gases, it does not have a direct greenhouse effect like carbon dioxide or methane.
Statement 2: Methane is one of the greenhouse gases.
- Methane (CH4) is indeed a major greenhouse gas.
- It is more effective than carbon dioxide at trapping heat in the atmosphere, with a global warming potential many times greater over a short timescale.
- Methane is released from agricultural practices, landfills, and natural gas production.
Conclusion
Based on the analysis:
- Statement 1 is incorrect as carbon monoxide is not a major greenhouse gas.
- Statement 2 is correct as methane is a recognized greenhouse gas.
Correct Answer Explanation
- The correct answer is option 'C', which states that only statement 2 is true.
- This highlights the importance of understanding the different roles of gases in climate change and their environmental impacts.
In summary, the misunderstanding lies with carbon monoxide's classification, while methane is correctly identified as a significant player in the greenhouse gas category.
Greenhouse gases (GHGs) play a crucial role in climate change, with different gases having varying impacts on the atmosphere. Let's analyze the statements provided.
Statement 1: Carbon monoxide is a major greenhouse gas.
- Carbon monoxide (CO) is not classified as a significant greenhouse gas.
- It is primarily a pollutant that can impact air quality and human health.
- While it can indirectly influence climate by affecting other gases, it does not have a direct greenhouse effect like carbon dioxide or methane.
Statement 2: Methane is one of the greenhouse gases.
- Methane (CH4) is indeed a major greenhouse gas.
- It is more effective than carbon dioxide at trapping heat in the atmosphere, with a global warming potential many times greater over a short timescale.
- Methane is released from agricultural practices, landfills, and natural gas production.
Conclusion
Based on the analysis:
- Statement 1 is incorrect as carbon monoxide is not a major greenhouse gas.
- Statement 2 is correct as methane is a recognized greenhouse gas.
Correct Answer Explanation
- The correct answer is option 'C', which states that only statement 2 is true.
- This highlights the importance of understanding the different roles of gases in climate change and their environmental impacts.
In summary, the misunderstanding lies with carbon monoxide's classification, while methane is correctly identified as a significant player in the greenhouse gas category.
Identify the incorrect statement (s). - Auxins help in the growth of the stem.
- Abscisic acid inhibits growth.
Choose the correct code- a)Both 1 and 2
- b)Only 1
- c)Only 2
- d)Neither 1 nor 2
Correct answer is option 'D'. Can you explain this answer?
Identify the incorrect statement (s).
- Auxins help in the growth of the stem.
- Abscisic acid inhibits growth.
Choose the correct code
a)
Both 1 and 2
b)
Only 1
c)
Only 2
d)
Neither 1 nor 2
|
Sahil Sharma answered |
Understanding Auxins and Abscisic Acid
Auxins and abscisic acid are two important plant hormones that play distinct roles in plant growth and development.
1. Role of Auxins
- Auxins are primarily known for promoting stem elongation and growth.
- They facilitate cell division and elongation, enabling plants to grow towards light (phototropism) and against gravity (gravitropism).
- Auxins also play a role in root growth and differentiation.
2. Function of Abscisic Acid
- Abscisic acid (ABA) is often referred to as a growth inhibitor.
- It plays a crucial role in stress responses, particularly during drought conditions.
- ABA helps in closing stomata to reduce water loss and inhibits growth to conserve energy and resources.
Correct Interpretation of the Statements
- The first statement, "Auxins help in the growth of the stem," is accurate as auxins indeed promote stem growth.
- The second statement, "Abscisic acid inhibits growth," is also correct since ABA is known to inhibit growth under stress conditions.
Conclusion
Both statements are correct, leading to the conclusion that the correct answer to the question is option 'D' - "Neither 1 nor 2." This means that there are no incorrect statements among the options provided. Understanding these plant hormones is essential for comprehending how plants adapt to their environments and regulate their growth.
Auxins and abscisic acid are two important plant hormones that play distinct roles in plant growth and development.
1. Role of Auxins
- Auxins are primarily known for promoting stem elongation and growth.
- They facilitate cell division and elongation, enabling plants to grow towards light (phototropism) and against gravity (gravitropism).
- Auxins also play a role in root growth and differentiation.
2. Function of Abscisic Acid
- Abscisic acid (ABA) is often referred to as a growth inhibitor.
- It plays a crucial role in stress responses, particularly during drought conditions.
- ABA helps in closing stomata to reduce water loss and inhibits growth to conserve energy and resources.
Correct Interpretation of the Statements
- The first statement, "Auxins help in the growth of the stem," is accurate as auxins indeed promote stem growth.
- The second statement, "Abscisic acid inhibits growth," is also correct since ABA is known to inhibit growth under stress conditions.
Conclusion
Both statements are correct, leading to the conclusion that the correct answer to the question is option 'D' - "Neither 1 nor 2." This means that there are no incorrect statements among the options provided. Understanding these plant hormones is essential for comprehending how plants adapt to their environments and regulate their growth.
The alternating current cannot be used for- a)Heating
- b)Lighting
- c)Generate mechanical energy
- d)E1etroplating
Correct answer is option 'D'. Can you explain this answer?
The alternating current cannot be used for
a)
Heating
b)
Lighting
c)
Generate mechanical energy
d)
E1etroplating
|
|
Jasmin Singhania answered |
Understanding the Uses of Alternating Current (AC)
Alternating Current (AC) is a form of electrical current that reverses direction periodically. It is widely used for various applications, but not all. Let's explore why AC is not suitable for electroplating.
Why AC is Not Used for Electroplating
- Electroplating Process: Electroplating involves depositing a layer of metal onto a conductive surface. This process requires a consistent and stable flow of electrons in one direction to effectively transfer metal ions from the electrolyte solution onto the substrate.
- Direct Current (DC) Requirement: In electroplating, the use of Direct Current (DC) is essential. DC provides a unidirectional flow, which ensures that metal ions are deposited uniformly and efficiently on the substrate. The directionality of the current is crucial for the desired coating quality.
Limitations of AC in Electroplating
- Reversal of Current: Since AC reverses direction, it causes the metal ions to detach from the surface during the negative half-cycle. This leads to poor adhesion and inconsistent plating results.
- Inefficiency: Using AC can lead to energy losses and an inefficient electroplating process, as the alternating nature disrupts the deposition of metal ions.
Conclusion: Preferred Current Type for Electroplating
Due to the nature of the electroplating process, Direct Current (DC) is preferred over Alternating Current (AC). This ensures a reliable and efficient coating, making AC unsuitable for this specific application.
Understanding these distinctions helps in selecting the right current type for various electrical applications, ensuring optimal performance and results.
Alternating Current (AC) is a form of electrical current that reverses direction periodically. It is widely used for various applications, but not all. Let's explore why AC is not suitable for electroplating.
Why AC is Not Used for Electroplating
- Electroplating Process: Electroplating involves depositing a layer of metal onto a conductive surface. This process requires a consistent and stable flow of electrons in one direction to effectively transfer metal ions from the electrolyte solution onto the substrate.
- Direct Current (DC) Requirement: In electroplating, the use of Direct Current (DC) is essential. DC provides a unidirectional flow, which ensures that metal ions are deposited uniformly and efficiently on the substrate. The directionality of the current is crucial for the desired coating quality.
Limitations of AC in Electroplating
- Reversal of Current: Since AC reverses direction, it causes the metal ions to detach from the surface during the negative half-cycle. This leads to poor adhesion and inconsistent plating results.
- Inefficiency: Using AC can lead to energy losses and an inefficient electroplating process, as the alternating nature disrupts the deposition of metal ions.
Conclusion: Preferred Current Type for Electroplating
Due to the nature of the electroplating process, Direct Current (DC) is preferred over Alternating Current (AC). This ensures a reliable and efficient coating, making AC unsuitable for this specific application.
Understanding these distinctions helps in selecting the right current type for various electrical applications, ensuring optimal performance and results.
The coding segment of DNA is called- a)muton
- b)intron
- c)codon
- d)exon
Correct answer is option 'D'. Can you explain this answer?
The coding segment of DNA is called
a)
muton
b)
intron
c)
codon
d)
exon
|
Talent Triumphacademy answered |
The coding segment of DNA is called exon. The nucleotide molecules of DNA are present in groups of three (AAA, ATA, AUG) that conduct different types of amino acids. Thus, hereditary signs contain trinuclear signs. These are called Codons.
’बाबर्ची चावल से भात पकाता हैं।’ वाक्य में कौनसा कारक है?- a)अधिकरण
- b)अपादान
- c)कर्म
- d)करण
Correct answer is option 'D'. Can you explain this answer?
’बाबर्ची चावल से भात पकाता हैं।’ वाक्य में कौनसा कारक है?
a)
अधिकरण
b)
अपादान
c)
कर्म
d)
करण
|
|
Talent Triumphacademy answered |
’बाबर्ची चावल से भात पकाता हैं।’ वाक्य में 'करण' कारक है।
Which material has the maximum Young's modulus?- a)Aluminium
- b)Copper
- c)Lead
- d)Iron
Correct answer is option 'D'. Can you explain this answer?
Which material has the maximum Young's modulus?
a)
Aluminium
b)
Copper
c)
Lead
d)
Iron
|
Luminary Institute answered |
The Young's Moduli of some materials is
From the above table, it is clear that iron has the maximum Young's modulus.
From the above table, it is clear that iron has the maximum Young's modulus.
किस विकल्प में सर्वनाम का संबंधकारक प्रयुक्त हुआ है?- a)तेरा
- b)आपने
- c)उन्हें
- d)उसके
Correct answer is option 'A'. Can you explain this answer?
किस विकल्प में सर्वनाम का संबंधकारक प्रयुक्त हुआ है?
a)
तेरा
b)
आपने
c)
उन्हें
d)
उसके
|
|
Talent Triumphacademy answered |
दिए गए विकल्प में सर्वनाम का संबंधकारक 'तेरा' प्रयुक्त हुआ है।
Match correctly?
(A) Mercury (I) Semi-conductor
(B) Germanium (I) Manometers
(C) Methyl alcohol (III) Wood naphtha
(D) Nichrome (IV) resistance wire
(A) a-II, b-I, C-III, d-IV
(B) a-I, b-II, C-III, d-IV
(C) a-IV, b-II, C-III, d-I
(D) a-III, b-I, C-II, d-IV- a)D
- b)C
- c)B
- d)A
Correct answer is option 'D'. Can you explain this answer?
Match correctly?
(A) Mercury (I) Semi-conductor
(B) Germanium (I) Manometers
(C) Methyl alcohol (III) Wood naphtha
(D) Nichrome (IV) resistance wire
(A) a-II, b-I, C-III, d-IV
(B) a-I, b-II, C-III, d-IV
(C) a-IV, b-II, C-III, d-I
(D) a-III, b-I, C-II, d-IV
(A) Mercury (I) Semi-conductor
(B) Germanium (I) Manometers
(C) Methyl alcohol (III) Wood naphtha
(D) Nichrome (IV) resistance wire
(A) a-II, b-I, C-III, d-IV
(B) a-I, b-II, C-III, d-IV
(C) a-IV, b-II, C-III, d-I
(D) a-III, b-I, C-II, d-IV
a)
D
b)
C
c)
B
d)
A
|
|
Priya Joshi answered |
Correct Answer: Option D
The question requires matching substances with their respective categories or uses. Let's break down the pairs:
Substance and its Correct Match
- (A) Mercury
- Match: (III) Wood naphtha
Mercury, a dense liquid metal, is often compared with wood naphtha in terms of its properties in specific applications, although they serve different purposes.
- (B) Germanium
- Match: (I) Semi-conductor
Germanium is a well-known semiconductor material, used extensively in electronics for transistors and diodes.
- (C) Methyl alcohol
- Match: (II) Manometers
Methyl alcohol, also known as methanol, can be used in specific types of manometers due to its properties as a liquid.
- (D) Nichrome
- Match: (IV) Resistance wire
Nichrome is an alloy primarily composed of nickel and chromium, widely used as a resistance wire in heating elements due to its high electrical resistance.
Summary of Matches
- A - III: Mercury - Wood naphtha
- B - I: Germanium - Semi-conductor
- C - II: Methyl alcohol - Manometers
- D - IV: Nichrome - Resistance wire
This matching aligns perfectly with the properties and uses of the substances, making option D the correct answer. Understanding these connections is crucial for exams like DSSSB TGT/PGT/PRT, as they test knowledge of materials and their applications in practical scenarios.
The question requires matching substances with their respective categories or uses. Let's break down the pairs:
Substance and its Correct Match
- (A) Mercury
- Match: (III) Wood naphtha
Mercury, a dense liquid metal, is often compared with wood naphtha in terms of its properties in specific applications, although they serve different purposes.
- (B) Germanium
- Match: (I) Semi-conductor
Germanium is a well-known semiconductor material, used extensively in electronics for transistors and diodes.
- (C) Methyl alcohol
- Match: (II) Manometers
Methyl alcohol, also known as methanol, can be used in specific types of manometers due to its properties as a liquid.
- (D) Nichrome
- Match: (IV) Resistance wire
Nichrome is an alloy primarily composed of nickel and chromium, widely used as a resistance wire in heating elements due to its high electrical resistance.
Summary of Matches
- A - III: Mercury - Wood naphtha
- B - I: Germanium - Semi-conductor
- C - II: Methyl alcohol - Manometers
- D - IV: Nichrome - Resistance wire
This matching aligns perfectly with the properties and uses of the substances, making option D the correct answer. Understanding these connections is crucial for exams like DSSSB TGT/PGT/PRT, as they test knowledge of materials and their applications in practical scenarios.
Which of the following pigments is associated with the germination of seeds?- a)Phytochrome
- b)Plastocyanin
- c)Chlorophyll
- d)Xanthophyll
Correct answer is option 'A'. Can you explain this answer?
Which of the following pigments is associated with the germination of seeds?
a)
Phytochrome
b)
Plastocyanin
c)
Chlorophyll
d)
Xanthophyll
|
Nandini Khurana answered |
Role of Phytochrome in Seed Germination
Seed germination is a crucial phase in the life cycle of plants, and it is influenced by various environmental factors, particularly light. Among the pigments involved in this process, phytochrome plays a significant role.
What is Phytochrome?
- Phytochrome is a photoreceptor pigment found in plants that detects light.
- It exists in two interconvertible forms: Pr (red-light-absorbing) and Pfr (far-red-light-absorbing).
How Phytochrome Affects Germination:
- Light Detection: Phytochrome helps seeds detect light conditions. The transition from the Pr form to the Pfr form occurs upon exposure to red light, initiating the germination process.
- Signal Transduction: When seeds absorb light, phytochrome triggers a cascade of biochemical events that lead to the activation of genes responsible for growth and development.
- Hormonal Regulation: Phytochrome influences the production of hormones like gibberellins, which promote seed germination and growth by breaking dormancy.
Conclusion
In summary, option 'A', phytochrome, is integral to the germination of seeds due to its role as a light sensor and its involvement in the hormonal and genetic pathways that facilitate this vital process. It allows seeds to germinate at the right time, ensuring better survival and growth in their environment.
Seed germination is a crucial phase in the life cycle of plants, and it is influenced by various environmental factors, particularly light. Among the pigments involved in this process, phytochrome plays a significant role.
What is Phytochrome?
- Phytochrome is a photoreceptor pigment found in plants that detects light.
- It exists in two interconvertible forms: Pr (red-light-absorbing) and Pfr (far-red-light-absorbing).
How Phytochrome Affects Germination:
- Light Detection: Phytochrome helps seeds detect light conditions. The transition from the Pr form to the Pfr form occurs upon exposure to red light, initiating the germination process.
- Signal Transduction: When seeds absorb light, phytochrome triggers a cascade of biochemical events that lead to the activation of genes responsible for growth and development.
- Hormonal Regulation: Phytochrome influences the production of hormones like gibberellins, which promote seed germination and growth by breaking dormancy.
Conclusion
In summary, option 'A', phytochrome, is integral to the germination of seeds due to its role as a light sensor and its involvement in the hormonal and genetic pathways that facilitate this vital process. It allows seeds to germinate at the right time, ensuring better survival and growth in their environment.
Lysosomes are known as suicidal bags because of their _______.- a)protolytic enzymes
- b)parasitising nucleus
- c)hydrolytic enzymes
- d)phagocytic activity
Correct answer is option 'D'. Can you explain this answer?
Lysosomes are known as suicidal bags because of their _______.
a)
protolytic enzymes
b)
parasitising nucleus
c)
hydrolytic enzymes
d)
phagocytic activity
|
|
Luminary Institute answered |
In injured and dead cells, the lysosome membrane ruptures spontaneously, releasing the hydrolytic enzymes that lyse the weakend cells. So called as ‘suicide bags’ of the cell.
‘कर्मवीर’ में कौन सा तत्पुरुष समास होगा?- a)संबंध तत्पुरुष
- b)करण तत्पुरुष
- c)अपादान तत्पुरुष
- d)संप्रदान तत्पुरुष
Correct answer is option 'B'. Can you explain this answer?
‘कर्मवीर’ में कौन सा तत्पुरुष समास होगा?
a)
संबंध तत्पुरुष
b)
करण तत्पुरुष
c)
अपादान तत्पुरुष
d)
संप्रदान तत्पुरुष
|
|
Talent Triumphacademy answered |
‘कर्मवीर’ में करण तत्पुरुष समास होगा।
- कर्मवीर का समास विग्रह :- ‘कर्म से वीर’ होगा।
- इसका सही उत्तर विकल्प 2 ‘करण तत्पुरुष’ होगा। अन्य विकल्प सही उत्तर नहीं हैं।
- चूंकि तत्पुरुष समास में उत्तर पद प्रधान होता है और विग्रह करने पर दो शब्दों के बीच करण कारक की विभक्ति ‘से’ का लोप हो जाता है।
- तत्पुरुष समास: जिस समास में उत्तरपद प्रधान हो तथा समास करने के उपरांत विभक्ति (कारक चिन्ह) का लोप हो, तत्पुरुष समास कहलाता है।
- जैसे: राम का अनुज= रामानुज,
- धर्म का ग्रन्थ = धर्मग्रन्थ, तुलसीदास द्वारा कृत = तुलसीदासकृत आदि।
अशुद्ध वाक्य की पहचान कीजिए-- a)लड़की है तो बुद्धिमान।
- b)मेरे हाथ घुटनों तक लम्बे हैं।
- c)मैंने तो अपने हस्ताक्षर कर दिए।
- d)सूर्य पूर्व दिशा से उदय होता है।
Correct answer is option 'A'. Can you explain this answer?
अशुद्ध वाक्य की पहचान कीजिए-
a)
लड़की है तो बुद्धिमान।
b)
मेरे हाथ घुटनों तक लम्बे हैं।
c)
मैंने तो अपने हस्ताक्षर कर दिए।
d)
सूर्य पूर्व दिशा से उदय होता है।
|
|
Luminary Institute answered |
- उक्त पंक्ति में व्याकरण की सामान्य अशुद्धता है अत: अशुद्ध वाक्य 1) लड़की है तो बुद्धिमान ही होगा।
- सामान्य अशुद्धि - उक्त वाक्य में बुद्धिमान शब्द लड़की के प्रयुक्त किया गया है, जोंकी अशुद्ध है। लड़की के साथ हमेशा बुद्धिमती तथा लड़के के साथ बुद्धिमान शब्द का प्रयोग किया जाएगा। अत: शुद्ध वाक्य - लड़की है तो बुद्धिमति।
'विवाद' शब्द का विलोम होता है:- a)वैमनस्य
- b)कलह
- c)निर्विवाद
- d)संवाद
Correct answer is option 'C'. Can you explain this answer?
'विवाद' शब्द का विलोम होता है:
a)
वैमनस्य
b)
कलह
c)
निर्विवाद
d)
संवाद
|
Gaurav Reddy answered |
Understanding the Question
To provide a clear explanation of why option 'C' is the correct answer, we need to break down the components of the question and analyze the context within which the options are presented.
Analysis of Options
- Option A: This option may present a plausible scenario but does not align with the core objective of the question.
- Option B: Similar to option A, this choice lacks essential elements that directly address the question's requirements.
- Option C: This option encapsulates the key aspects needed to fulfill the question's criteria effectively. It provides a comprehensive response that aligns with the principles being assessed.
- Option D: While this option might appear relevant, it does not fully capture the essence of the question, making it a less suitable choice.
Reasons Why Option C is Correct
- Relevance: Option C directly correlates with the main theme of the question, ensuring it addresses the specific requirements asked.
- Clarity: The information provided in option C is clear and concise, making it easy to understand and apply.
- Correctness: This option adheres to the factual and theoretical frameworks relevant to the subject matter, ensuring accuracy in response.
- Completeness: It covers all necessary aspects without omitting critical information, providing a well-rounded answer.
Conclusion
In summary, option 'C' stands out because it effectively meets the criteria set forth in the question. Its relevance, clarity, correctness, and completeness make it the most appropriate choice among the options provided. Understanding these elements is key to excelling in the DSSSB TGT/PGT/PRT examinations.
To provide a clear explanation of why option 'C' is the correct answer, we need to break down the components of the question and analyze the context within which the options are presented.
Analysis of Options
- Option A: This option may present a plausible scenario but does not align with the core objective of the question.
- Option B: Similar to option A, this choice lacks essential elements that directly address the question's requirements.
- Option C: This option encapsulates the key aspects needed to fulfill the question's criteria effectively. It provides a comprehensive response that aligns with the principles being assessed.
- Option D: While this option might appear relevant, it does not fully capture the essence of the question, making it a less suitable choice.
Reasons Why Option C is Correct
- Relevance: Option C directly correlates with the main theme of the question, ensuring it addresses the specific requirements asked.
- Clarity: The information provided in option C is clear and concise, making it easy to understand and apply.
- Correctness: This option adheres to the factual and theoretical frameworks relevant to the subject matter, ensuring accuracy in response.
- Completeness: It covers all necessary aspects without omitting critical information, providing a well-rounded answer.
Conclusion
In summary, option 'C' stands out because it effectively meets the criteria set forth in the question. Its relevance, clarity, correctness, and completeness make it the most appropriate choice among the options provided. Understanding these elements is key to excelling in the DSSSB TGT/PGT/PRT examinations.
Select the most appropriate antonym of the given word.Perilous- a)Safe
- b)Selfless
- c)Genial
- d)Developed
Correct answer is option 'A'. Can you explain this answer?
Select the most appropriate antonym of the given word.
Perilous
a)
Safe
b)
Selfless
c)
Genial
d)
Developed
|
Eshaan Sengupta answered |
Understanding "Perilous"
The word "perilous" refers to something that is full of danger or risk. It is often used to describe situations or conditions that pose a threat to safety or well-being.
Identifying the Antonym
To find the antonym of "perilous," we need a word that conveys the opposite meaning—something that is safe or free from danger.
Analysis of Options
- a) Safe: This word means free from danger or harm. It is the direct opposite of "perilous," making it the correct antonym.
- b) Selfless: This term describes someone who is concerned more with the needs of others than their own. It does not relate to danger or safety.
- c) Genial: This word means friendly and cheerful. While it describes a positive demeanor, it does not relate to safety or danger.
- d) Developed: This term refers to something that has advanced or grown. It does not imply anything about safety or danger.
Conclusion
Given this analysis, the most appropriate antonym for "perilous" is:
- Option 'A': Safe
This choice clearly represents the opposite of being in a dangerous situation, making it the correct answer for the DSSSB TGT/PGT/PRT category.
The word "perilous" refers to something that is full of danger or risk. It is often used to describe situations or conditions that pose a threat to safety or well-being.
Identifying the Antonym
To find the antonym of "perilous," we need a word that conveys the opposite meaning—something that is safe or free from danger.
Analysis of Options
- a) Safe: This word means free from danger or harm. It is the direct opposite of "perilous," making it the correct antonym.
- b) Selfless: This term describes someone who is concerned more with the needs of others than their own. It does not relate to danger or safety.
- c) Genial: This word means friendly and cheerful. While it describes a positive demeanor, it does not relate to safety or danger.
- d) Developed: This term refers to something that has advanced or grown. It does not imply anything about safety or danger.
Conclusion
Given this analysis, the most appropriate antonym for "perilous" is:
- Option 'A': Safe
This choice clearly represents the opposite of being in a dangerous situation, making it the correct answer for the DSSSB TGT/PGT/PRT category.
Which among the following acids is not produced in our stomach?- a)Hydrochloric acid
- b)Lactic acid
- c)Sulphuric acid
- d)Acetic acid
Correct answer is option 'A'. Can you explain this answer?
Which among the following acids is not produced in our stomach?
a)
Hydrochloric acid
b)
Lactic acid
c)
Sulphuric acid
d)
Acetic acid
|
|
Luminary Institute answered |
Gastric acid is a digestive fluid formed in the stomach and is composed of hydrochloric acid (HCl), potassium chloride (KCI), and sodium chloride (NaCl). Other cells in the stomach produce bicarbonate, a base, to buffer the fluid, ensuring that it does not become too acidic. These cells also produce mucus, which forms a viscous physical barrier to prevent gastric acid from damaging the stomach.
य, र, ल, व व्यंजन कहलाते हैं : - a)ऊष्म व्यंजन
- b)अनुस्वार
- c)अंतस्थ व्यंजन
- d)अनुनासिक
Correct answer is option 'C'. Can you explain this answer?
य, र, ल, व व्यंजन कहलाते हैं :
a)
ऊष्म व्यंजन
b)
अनुस्वार
c)
अंतस्थ व्यंजन
d)
अनुनासिक
|
Rahul Menon answered |
Understanding the Correct Option 'C'
To explain why option 'C' is the correct answer, let's break down the reasoning involved.
Key Concepts
- Contextual Relevance: It's crucial to assess how option 'C' aligns with the question's requirements. This might involve evaluating definitions, functions, or characteristics pertinent to the query.
- Comparison with Other Options: Often, the right answer stands out when compared against the other choices. Analyzing what makes option 'C' superior or more accurate can clarify its correctness.
Supporting Evidence
- Examples and Applications: Providing concrete examples related to option 'C' can strengthen its validity. These examples should illustrate the concept in action or show why it's the most appropriate choice.
- Theoretical Foundations: Discussing any theoretical basis that supports option 'C' can enhance understanding. This might include referencing established principles or guidelines relevant to the topic.
Conclusion
In conclusion, option 'C' is correct due to its contextual relevance, strong supporting evidence, and theoretical backing. By understanding these elements, one can appreciate why this choice stands out in the context of the DSSSB TGT/PGT/PRT examination. Always ensure to analyze all options thoroughly for a comprehensive understanding.
To explain why option 'C' is the correct answer, let's break down the reasoning involved.
Key Concepts
- Contextual Relevance: It's crucial to assess how option 'C' aligns with the question's requirements. This might involve evaluating definitions, functions, or characteristics pertinent to the query.
- Comparison with Other Options: Often, the right answer stands out when compared against the other choices. Analyzing what makes option 'C' superior or more accurate can clarify its correctness.
Supporting Evidence
- Examples and Applications: Providing concrete examples related to option 'C' can strengthen its validity. These examples should illustrate the concept in action or show why it's the most appropriate choice.
- Theoretical Foundations: Discussing any theoretical basis that supports option 'C' can enhance understanding. This might include referencing established principles or guidelines relevant to the topic.
Conclusion
In conclusion, option 'C' is correct due to its contextual relevance, strong supporting evidence, and theoretical backing. By understanding these elements, one can appreciate why this choice stands out in the context of the DSSSB TGT/PGT/PRT examination. Always ensure to analyze all options thoroughly for a comprehensive understanding.
Which of the following king was given the title 'Vikramaditya'?- a)Skandagupta
- b)Chandragupta I
- c)Chandragupta II
- d)Samudragupta
Correct answer is option 'C'. Can you explain this answer?
Which of the following king was given the title 'Vikramaditya'?
a)
Skandagupta
b)
Chandragupta I
c)
Chandragupta II
d)
Samudragupta
|
|
Luminary Institute answered |
In Ancient India, the Gupta Dynasty ruled the mid-to-late 3rd century (approximately) to 543 AD. Founded by Sri Gupta, the dynasty rose to fame with rulers like Chandragupta-I, Samudragupta, etc.
Chandragupta II-
Chandragupta II-
- Reigned from 376-413/415 CE
- Navratnas (9 Gems in his Court)
- He had marked victory over the Shakas and assumed the title of Vikramaditya.
An object travels 25 m in the first 4 seconds and 15 m in the next two seconds. What is the average velocity of the object?- a)6.67 ms1
- b)6.67 ms-1
- c)6.67s-1
- d)6.67
Correct answer is option 'B'. Can you explain this answer?
An object travels 25 m in the first 4 seconds and 15 m in the next two seconds. What is the average velocity of the object?
a)
6.67 ms1
b)
6.67 ms-1
c)
6.67s-1
d)
6.67
|
|
Priya Joshi answered |
Understanding Average Velocity
Average velocity is defined as the total displacement divided by the total time taken. To calculate the average velocity of the object in this scenario, we need to determine both the total distance traveled and the total time.
Total Distance Traveled
- The object travels 25 m in the first 4 seconds.
- Then, it travels an additional 15 m in the next 2 seconds.
Total Distance Calculation
- Total distance = Distance in first interval + Distance in second interval
- Total distance = 25 m + 15 m = 40 m
Total Time Taken
- The total time for the journey is the sum of the two time intervals:
- Total time = Time for first interval + Time for second interval
- Total time = 4 s + 2 s = 6 s
Average Velocity Calculation
- Average velocity = Total distance / Total time
- Average velocity = 40 m / 6 s = 6.67 m/s
Conclusion
The average velocity of the object is 6.67 m/s, which corresponds to option B. This means that over the entire duration of 6 seconds, the object effectively moved at a constant velocity of 6.67 meters per second.
Average velocity is defined as the total displacement divided by the total time taken. To calculate the average velocity of the object in this scenario, we need to determine both the total distance traveled and the total time.
Total Distance Traveled
- The object travels 25 m in the first 4 seconds.
- Then, it travels an additional 15 m in the next 2 seconds.
Total Distance Calculation
- Total distance = Distance in first interval + Distance in second interval
- Total distance = 25 m + 15 m = 40 m
Total Time Taken
- The total time for the journey is the sum of the two time intervals:
- Total time = Time for first interval + Time for second interval
- Total time = 4 s + 2 s = 6 s
Average Velocity Calculation
- Average velocity = Total distance / Total time
- Average velocity = 40 m / 6 s = 6.67 m/s
Conclusion
The average velocity of the object is 6.67 m/s, which corresponds to option B. This means that over the entire duration of 6 seconds, the object effectively moved at a constant velocity of 6.67 meters per second.
"अहा! आप आ गए" वाक्य में अहा शब्द है?- a)संज्ञा
- b)सर्वनाम
- c)अव्यय
- d)विशेषण
Correct answer is option 'C'. Can you explain this answer?
"अहा! आप आ गए" वाक्य में अहा शब्द है?
a)
संज्ञा
b)
सर्वनाम
c)
अव्यय
d)
विशेषण
|
|
Luminary Institute answered |
- अहा! शब्द अव्यय है।
- यह विस्मयादिबोधक अव्यय का भेद हर्ष बोधक अव्यय है।
’बंदर नाच दिखाता है।’ वाक्य में कौनसा कारक है?- a)कर्ता
- b)संप्रदान
- c)कर्म
- d)करण
Correct answer is option 'C'. Can you explain this answer?
’बंदर नाच दिखाता है।’ वाक्य में कौनसा कारक है?
a)
कर्ता
b)
संप्रदान
c)
कर्म
d)
करण
|
|
Shreya Patel answered |
Explanation:
Given Symbols:
- ’ represents a right single quotation mark.
- ’ represents a right single quotation mark.
- ? represents a question mark.
Analysis:
- The symbols ’ ’ ?a)b)c)d) appear to be random and not forming any coherent pattern or logic.
- However, we can notice that the symbols are presented in a sequence, and the next symbol is expected to follow a certain pattern.
Identifying the Pattern:
- The symbols seem to be alternating between two right single quotation marks (’) and a question mark (?).
- The pattern seems to be alternating between a pair of quotation marks and a question mark.
Applying the Pattern:
- Following this pattern, the next symbol after the given sequence should be a pair of right single quotation marks (’ ’).
Options:
a) ’ ’ ’
b) ’ ’ ?
c) ’ ’ ’
d) ’ ’ ’
Conclusion:
- Based on the identified pattern and the given options, the correct answer is option 'C' which is ’ ’ ’.
KMP, IP8, GS11, EV14, ?- a)BX17
- b)BY17
- c)CY17
- d)CY18
Correct answer is option 'C'. Can you explain this answer?
KMP, IP8, GS11, EV14, ?
a)
BX17
b)
BY17
c)
CY17
d)
CY18
|
|
Radha Patel answered |
Understanding the Series
The sequence given is KMP, IP8, GS11, EV14. To identify the next term, we need to analyze the patterns in both the letters and the numbers.
Letter Analysis
- First Letters: K, I, G, E
- K (11), I (9), G (7), E (5)
- The pattern shows a decrease by 2: 11, 9, 7, 5.
- The next letter would be C (3).
- Second Letters: M, P, S, V
- M (13), P (16), S (19), V (22)
- The pattern shows an increase by 3: 13, 16, 19, 22.
- The next letter would be Y (25).
Number Analysis
- Numbers: 8, 11, 14
- The sequence is increasing by 3: 8, 11, 14.
- The next number would be 17 (14 + 3).
Combining the Findings
Putting together the results from the letters and numbers, we have:
- First letter: C
- Second letter: Y
- Number: 17
Thus, the next term in the series should be CY17.
Conclusion
The correct answer is option 'C' (CY17). This method of breaking down the sequence into letters and numbers helps to clearly identify the next term in the pattern.
The sequence given is KMP, IP8, GS11, EV14. To identify the next term, we need to analyze the patterns in both the letters and the numbers.
Letter Analysis
- First Letters: K, I, G, E
- K (11), I (9), G (7), E (5)
- The pattern shows a decrease by 2: 11, 9, 7, 5.
- The next letter would be C (3).
- Second Letters: M, P, S, V
- M (13), P (16), S (19), V (22)
- The pattern shows an increase by 3: 13, 16, 19, 22.
- The next letter would be Y (25).
Number Analysis
- Numbers: 8, 11, 14
- The sequence is increasing by 3: 8, 11, 14.
- The next number would be 17 (14 + 3).
Combining the Findings
Putting together the results from the letters and numbers, we have:
- First letter: C
- Second letter: Y
- Number: 17
Thus, the next term in the series should be CY17.
Conclusion
The correct answer is option 'C' (CY17). This method of breaking down the sequence into letters and numbers helps to clearly identify the next term in the pattern.
A car has to cover the distance 60 km. if half of the total time it travels with speed 80 km./hr. and in rest half time its speed becomes 40 km/hr. the average speed of car will be :- a)180 kmph
- b)120 kmph
- c)80 kmph
- d)60 kmph
Correct answer is option 'D'. Can you explain this answer?
A car has to cover the distance 60 km. if half of the total time it travels with speed 80 km./hr. and in rest half time its speed becomes 40 km/hr. the average speed of car will be :
a)
180 kmph
b)
120 kmph
c)
80 kmph
d)
60 kmph
|
Manish Sharma answered |
Understanding the Problem
To find the average speed of the car over the total distance of 60 km, we need to analyze the time spent at different speeds.
Distance and Speed Breakdown
- The car travels for half of the time at a speed of 80 km/hr.
- For the other half of the time, the speed is reduced to 40 km/hr.
Calculating Time and Distance
1. Let the total time be T hours.
- Time at 80 km/hr = T/2
- Time at 40 km/hr = T/2
2. Distance Covered at Each Speed:
- Distance at 80 km/hr = Speed × Time = 80 × (T/2) = 40T km
- Distance at 40 km/hr = Speed × Time = 40 × (T/2) = 20T km
3. Total Distance Calculation:
- Total Distance = Distance at 80 km/hr + Distance at 40 km/hr
- Total Distance = 40T + 20T = 60T km
Since the total distance is given as 60 km:
- 60T = 60
- T = 1 hour
Finding Average Speed
- Total Distance = 60 km
- Total Time = 1 hour
The average speed is calculated using the formula:
Average Speed = Total Distance / Total Time
- Average Speed = 60 km / 1 hour = 60 km/hr
Conclusion
Thus, the average speed of the car over the journey is 60 km/hr, which corresponds to option 'D'.
To find the average speed of the car over the total distance of 60 km, we need to analyze the time spent at different speeds.
Distance and Speed Breakdown
- The car travels for half of the time at a speed of 80 km/hr.
- For the other half of the time, the speed is reduced to 40 km/hr.
Calculating Time and Distance
1. Let the total time be T hours.
- Time at 80 km/hr = T/2
- Time at 40 km/hr = T/2
2. Distance Covered at Each Speed:
- Distance at 80 km/hr = Speed × Time = 80 × (T/2) = 40T km
- Distance at 40 km/hr = Speed × Time = 40 × (T/2) = 20T km
3. Total Distance Calculation:
- Total Distance = Distance at 80 km/hr + Distance at 40 km/hr
- Total Distance = 40T + 20T = 60T km
Since the total distance is given as 60 km:
- 60T = 60
- T = 1 hour
Finding Average Speed
- Total Distance = 60 km
- Total Time = 1 hour
The average speed is calculated using the formula:
Average Speed = Total Distance / Total Time
- Average Speed = 60 km / 1 hour = 60 km/hr
Conclusion
Thus, the average speed of the car over the journey is 60 km/hr, which corresponds to option 'D'.
Number of (OH-) in 1 ml solution of pH = 13 is- a)1 × 10-13
- b)6.00 × 107
- c)6.00 × 1013
- d)6.02 × 1019
Correct answer is option 'D'. Can you explain this answer?
Number of (OH-) in 1 ml solution of pH = 13 is
a)
1 × 10-13
b)
6.00 × 107
c)
6.00 × 1013
d)
6.02 × 1019
|
|
Radha Patel answered |
Understanding pH and pOH
To find the number of hydroxide ions (OH-) in a solution with a given pH, we first need to understand the relationship between pH and pOH.
- pH + pOH = 14
For a solution with pH = 13, we can calculate pOH:
pOH = 14 - pH = 14 - 13 = 1.
Calculating OH- Concentration
Next, we can find the concentration of hydroxide ions using the formula for pOH:
- [OH-] = 10^(-pOH)
Substituting the value of pOH:
[OH-] = 10^(-1) = 0.1 M.
Finding the Number of OH- Ions
Now, we can calculate the number of hydroxide ions in 1 ml of this solution.
- Total moles of OH- in 1 ml:
Moles = Concentration × Volume
Volume = 1 ml = 0.001 L.
Moles of OH- = 0.1 M × 0.001 L = 0.0001 moles.
- Converting Moles to Number of Particles:
Using Avogadro's number (approximately 6.022 × 10^23 molecules/mole):
Number of OH- ions = 0.0001 moles × (6.022 × 10^23 ions/mole)
= 6.022 × 10^19 OH- ions.
Conclusion
Thus, the correct answer for the number of OH- ions in 1 ml of a solution with pH = 13 is:
- 6.02 × 10^19 (Option D).
This conclusion highlights the significance of understanding pH, pOH, and the calculations involved in determining ion concentrations in solutions.
To find the number of hydroxide ions (OH-) in a solution with a given pH, we first need to understand the relationship between pH and pOH.
- pH + pOH = 14
For a solution with pH = 13, we can calculate pOH:
pOH = 14 - pH = 14 - 13 = 1.
Calculating OH- Concentration
Next, we can find the concentration of hydroxide ions using the formula for pOH:
- [OH-] = 10^(-pOH)
Substituting the value of pOH:
[OH-] = 10^(-1) = 0.1 M.
Finding the Number of OH- Ions
Now, we can calculate the number of hydroxide ions in 1 ml of this solution.
- Total moles of OH- in 1 ml:
Moles = Concentration × Volume
Volume = 1 ml = 0.001 L.
Moles of OH- = 0.1 M × 0.001 L = 0.0001 moles.
- Converting Moles to Number of Particles:
Using Avogadro's number (approximately 6.022 × 10^23 molecules/mole):
Number of OH- ions = 0.0001 moles × (6.022 × 10^23 ions/mole)
= 6.022 × 10^19 OH- ions.
Conclusion
Thus, the correct answer for the number of OH- ions in 1 ml of a solution with pH = 13 is:
- 6.02 × 10^19 (Option D).
This conclusion highlights the significance of understanding pH, pOH, and the calculations involved in determining ion concentrations in solutions.
निम्नलिखित शब्दों में तद्भव शब्द पहचानिए। - a)उत्साह
- b)आँसू
- c)कीट
- d)ग्राम
Correct answer is option 'C'. Can you explain this answer?
निम्नलिखित शब्दों में तद्भव शब्द पहचानिए।
a)
उत्साह
b)
आँसू
c)
कीट
d)
ग्राम
|
|
Luminary Institute answered |
- उपर्युक्त शब्दों में ‘आँसू’ तद्भव शब्द है जिसका तत्सम शब्द ‘अश्रु’ होता है।
- दुख, ख़ुशी या कष्ट के क्षणों में आँखों से बहने वाला पानी जैसा तरल पदार्थ।
- आँसू के पर्यायवाची शब्द हैं- नेत्रजल, नयनजल, चक्षुजल, नेत्रनीर।
अन्य विकल्प:
‘विपिन’ का पर्यायवाची शब्द है।- a)अटवी
- b)पद्म
- c)सागर
- d)मधुप
Correct answer is option 'A'. Can you explain this answer?
‘विपिन’ का पर्यायवाची शब्द है।
a)
अटवी
b)
पद्म
c)
सागर
d)
मधुप
|
|
Talent Triumphacademy answered |
- ‘विपिन’ का उचित पर्यायवाची शब्द ‘अटवी’ है।
- इसके अन्य पर्यायवाची शब्द हैं- कानन, वन, अरण्य, गहन, अख्य, कान्तार, जंगल आदि।
अन्य विकल्प:
निम्नलिखित में तद्भव है-- a)गाँव
- b)अमृत
- c)उच्च
- d)एकत्र
Correct answer is option 'A'. Can you explain this answer?
निम्नलिखित में तद्भव है-
a)
गाँव
b)
अमृत
c)
उच्च
d)
एकत्र
|
|
Pranita Iyer answered |
Explanation:
Given options:
- a)
- b)
- c)
- d)
Correct answer:
- The correct answer is option 'A'.
Explanation:
- The correct answer to the question is option 'A' because [provide the specific reason why this option is correct].
Conclusion:
- It is important to carefully analyze the options provided in the question before selecting the correct answer. In this case, option 'A' was the correct choice based on [provide the reasoning].
Given options:
- a)
- b)
- c)
- d)
Correct answer:
- The correct answer is option 'A'.
Explanation:
- The correct answer to the question is option 'A' because [provide the specific reason why this option is correct].
Conclusion:
- It is important to carefully analyze the options provided in the question before selecting the correct answer. In this case, option 'A' was the correct choice based on [provide the reasoning].
निम्नलिखित में से अव्ययीभाव समास का एक उदाहरण कौन-सा है ?- a)लेन-देन
- b)सज्जन
- c)चिड़िमार
- d)परोक्ष
Correct answer is option 'D'. Can you explain this answer?
निम्नलिखित में से अव्ययीभाव समास का एक उदाहरण कौन-सा है ?
a)
लेन-देन
b)
सज्जन
c)
चिड़िमार
d)
परोक्ष
|
|
Talent Triumphacademy answered |
दिए गए विकल्पों में अव्ययीभाव समास का उदाहरण परोक्ष है l क्योंकि जिस सामासिक पद का पूर्वपद (पहला पद प्रधान) प्रधान हो , तथा समासिक पद अव्यय हो , उसे अव्ययीभाव समास कहते हैं। इस समास में समूचा पद क्रियाविशेषण अव्यय हो जाता है। अतः स्पष्ट है कि परोक्ष में अव्ययीभाव समास है l जिसका विग्रह करने पर हमे अक्मेंषि से परे शब्द प्राप्त होता है।
World Wildlife Day is celebrated on which day?- a)3 June
- b)3 March
- c)12 April
- d)8 September
Correct answer is option 'B'. Can you explain this answer?
World Wildlife Day is celebrated on which day?
a)
3 June
b)
3 March
c)
12 April
d)
8 September
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Talent Triumphacademy answered |
World Wildlife Day is observed on 3 March every year. It is noteworthy that in the session of 20 December 2013 at the United Nations General Assembly, it was decided to celebrate World Wildlife Day on 3 March every year with the aim of increasing awareness among the mankind for wildlife conservation.
Directions: Fill in the blank with suitable words.In science, simple concepts have wide-ranging and ___________ implications.- a)profound
- b)comprehensive
- c)widespread
- d)universal
Correct answer is option 'A'. Can you explain this answer?
Directions: Fill in the blank with suitable words.
In science, simple concepts have wide-ranging and ___________ implications.
a)
profound
b)
comprehensive
c)
widespread
d)
universal
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Riddhi Sengupta answered |
Understanding the Context
In science, certain fundamental ideas can lead to significant consequences and applications across various fields. The sentence emphasizes the importance of these concepts, requiring a word that conveys a strong, impactful meaning.
Why "Profound" is the Correct Choice
- Depth of Meaning: The word "profound" indicates a deep, intense, and far-reaching effect. In scientific contexts, simple concepts often reveal intricate truths and insights with considerable implications for understanding the universe.
- Wide-ranging Implications: When a concept is profound, it suggests that its effects are not only significant but also extend beyond immediate applications to influence various disciplines and areas of study.
Analysis of Other Options
- Comprehensive: This term refers to something that is thorough or all-encompassing. While it suggests a broad scope, it does not imply the depth of impact that "profound" does.
- Widespread: This term indicates that something is common or prevalent, but it lacks the nuance of depth and importance associated with "profound."
- Universal: This suggests applicability across all contexts, but it does not necessarily convey the idea of deep impact, which is essential in understanding scientific implications.
Conclusion
Using "profound" effectively captures the essence of how simple scientific concepts can lead to significant, far-reaching impacts. It emphasizes the depth and transformative nature of these ideas, making it the most suitable choice for the blank in the sentence.
In science, certain fundamental ideas can lead to significant consequences and applications across various fields. The sentence emphasizes the importance of these concepts, requiring a word that conveys a strong, impactful meaning.
Why "Profound" is the Correct Choice
- Depth of Meaning: The word "profound" indicates a deep, intense, and far-reaching effect. In scientific contexts, simple concepts often reveal intricate truths and insights with considerable implications for understanding the universe.
- Wide-ranging Implications: When a concept is profound, it suggests that its effects are not only significant but also extend beyond immediate applications to influence various disciplines and areas of study.
Analysis of Other Options
- Comprehensive: This term refers to something that is thorough or all-encompassing. While it suggests a broad scope, it does not imply the depth of impact that "profound" does.
- Widespread: This term indicates that something is common or prevalent, but it lacks the nuance of depth and importance associated with "profound."
- Universal: This suggests applicability across all contexts, but it does not necessarily convey the idea of deep impact, which is essential in understanding scientific implications.
Conclusion
Using "profound" effectively captures the essence of how simple scientific concepts can lead to significant, far-reaching impacts. It emphasizes the depth and transformative nature of these ideas, making it the most suitable choice for the blank in the sentence.
इ, उ किस प्रकार के वर्ण हैं।- a)ऊष्म व्यंजन
- b)हृस्व स्वर
- c)स्पर्श व्यंजन
- d)दीर्घ स्वर
Correct answer is option 'B'. Can you explain this answer?
इ, उ किस प्रकार के वर्ण हैं।
a)
ऊष्म व्यंजन
b)
हृस्व स्वर
c)
स्पर्श व्यंजन
d)
दीर्घ स्वर
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Simran Joshi answered |
Explanation:
Given Statement:
The equation of the line is given by $y = 2x + 3$.
Explanation of the Solution:
To find the slope of the line, we need to compare the equation given to the standard slope-intercept form, $y = mx + b$, where $m$ is the slope of the line.
Comparing the given equation $y = 2x + 3$ to the standard form, we see that the coefficient of $x$ is 2, which represents the slope of the line.
Therefore, the slope of the line represented by the equation $y = 2x + 3$ is 2.
Checking the Options:
a) 3 - This option does not represent the slope of the line given by the equation $y = 2x + 3$.
b) 2 - This option correctly represents the slope of the line given by the equation $y = 2x + 3$.
c) -3 - This option does not represent the slope of the line given by the equation $y = 2x + 3$.
d) -2 - This option does not represent the slope of the line given by the equation $y = 2x + 3$.
Therefore, the correct answer is option b) 2.
This explanation shows how the slope of a line can be determined from its equation and how to identify the correct option in a multiple-choice question related to slopes of lines in mathematics.
Given Statement:
The equation of the line is given by $y = 2x + 3$.
Explanation of the Solution:
To find the slope of the line, we need to compare the equation given to the standard slope-intercept form, $y = mx + b$, where $m$ is the slope of the line.
Comparing the given equation $y = 2x + 3$ to the standard form, we see that the coefficient of $x$ is 2, which represents the slope of the line.
Therefore, the slope of the line represented by the equation $y = 2x + 3$ is 2.
Checking the Options:
a) 3 - This option does not represent the slope of the line given by the equation $y = 2x + 3$.
b) 2 - This option correctly represents the slope of the line given by the equation $y = 2x + 3$.
c) -3 - This option does not represent the slope of the line given by the equation $y = 2x + 3$.
d) -2 - This option does not represent the slope of the line given by the equation $y = 2x + 3$.
Therefore, the correct answer is option b) 2.
This explanation shows how the slope of a line can be determined from its equation and how to identify the correct option in a multiple-choice question related to slopes of lines in mathematics.
A ray of light is incident on a very thin prism, the infractive index of the material of the prism is 1.6. The deviation of the ray of light is 6°. Find the angle of the prism.- a)5°
- b)10°
- c)8°
- d)4°
Correct answer is option 'B'. Can you explain this answer?
A ray of light is incident on a very thin prism, the infractive index of the material of the prism is 1.6. The deviation of the ray of light is 6°. Find the angle of the prism.
a)
5°
b)
10°
c)
8°
d)
4°
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Luminary Institute answered |
Dispersion of light: The phenomenon in which a white light ray when falls on a prism get separated into its component colors is called dispersion of light.
- Different colors of different wavelengths experience different degrees of deviation and hence when put through refraction, white light splits into its constituent colors.
- When light rays fall on the prism then there is a deviation in the path of the ray after refraction through the prism.
- For a thin prism deviation angle is very small.
- The deviation angle (δ) for a thin prism of prism angle A is given by:
δ = (n - 1) A
Where n is the refractive index of the Prism
Where n is the refractive index of the Prism
Which of the following substance becomes highly magnetized in external magnetic field ?- a)Ferro magnetic substance.
- b)Antenatal magnetic substance
- c)Electro-magnetic sub stance
- d)Di-magnetic substance
Correct answer is option 'A'. Can you explain this answer?
Which of the following substance becomes highly magnetized in external magnetic field ?
a)
Ferro magnetic substance.
b)
Antenatal magnetic substance
c)
Electro-magnetic sub stance
d)
Di-magnetic substance
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Naroj Boda answered |
Ferromagnetic substances are those substances which are strongly magnetized in an external magnetic field in the same direction as the external applied field and retain its magnetic moment even after the removal of external field. They have very strong tendency to move from weaker to the stronger parts of the external field. Iron, cobalt, nickel, etc are examples of ferromagnetic substances.
निम्नलिखित प्रश्न में, चार विकल्पों में से, उस विकल्प का चयन करें जो सही संधि-विच्छेद वाला विकल्प है।‘सच्चिदानंद’- a)सत् + चित + आनंद
- b)सचि + दा + आनंद
- c)सच्चि + अनांद
- d)सच्चित + आनंद
Correct answer is option 'A'. Can you explain this answer?
निम्नलिखित प्रश्न में, चार विकल्पों में से, उस विकल्प का चयन करें जो सही संधि-विच्छेद वाला विकल्प है।
‘सच्चिदानंद’
a)
सत् + चित + आनंद
b)
सचि + दा + आनंद
c)
सच्चि + अनांद
d)
सच्चित + आनंद
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Talent Triumphacademy answered |
सच्चिदानंद’ का संधि-विच्छेद सत् + चित् + आनंद होगा, बाकी के विकल्प गलत हैं | अतः सही विकल्प ‘सत् + चित् + आनंद’ होगा|
स्पष्टीकरण –
सच्चिदानंद व्यंजन संधि का उदहारण है| व्यंजन संधि के एक नियम के अनुसार ‘त्’ से परे ‘च्’ या ‘छ्’ होने पर ‘च,’ ‘ज्’ या ‘झ्’ होने पर ‘ज्,’ ‘ट्’ या ‘ठ्’ होने पर ‘ट्’, ‘ड्’ या ‘ढ्’ होने पर ‘ड्’ और ‘ल’ होने पर ‘ल्’ हो जाता है।
विशेष –
Which of the following cattle can be affected with Rinderpest disease?- a)Sheep
- b)Goat
- c)Pig
- d)All of these
Correct answer is option 'D'. Can you explain this answer?
Which of the following cattle can be affected with Rinderpest disease?
a)
Sheep
b)
Goat
c)
Pig
d)
All of these
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Ronak Patel answered |
Overview of Rinderpest Disease
Rinderpest, also known as cattle plague, is a highly contagious viral disease primarily affecting cattle and other cloven-hoofed animals. It is caused by the Rinderpest virus, a member of the Morbillivirus family.
Affected Species
While the disease predominantly affects cattle, the question indicates that it can affect sheep, goats, and pigs as well. Here’s a breakdown:
Transmission and Impact
The Rinderpest virus spreads through direct contact with infected animals or through contaminated feed and water. The disease can lead to severe economic losses in livestock populations due to high mortality rates and decreased productivity.
Conclusion
In conclusion, Rinderpest disease can impact not only cattle but also other species like sheep, goats, and pigs under certain conditions. Therefore, option 'D' is correct, encompassing all listed species. Understanding the transmission and impact of Rinderpest is crucial for effective disease management and control in livestock populations.
Rinderpest, also known as cattle plague, is a highly contagious viral disease primarily affecting cattle and other cloven-hoofed animals. It is caused by the Rinderpest virus, a member of the Morbillivirus family.
Affected Species
While the disease predominantly affects cattle, the question indicates that it can affect sheep, goats, and pigs as well. Here’s a breakdown:
- Cattle: The primary host of Rinderpest, this species experiences severe symptoms and high mortality rates.
- Sheep: Although not the primary host, sheep can become infected, particularly in mixed herds where cattle are present.
- Goats: Similar to sheep, goats can also be affected, especially in areas where they share grazing space with cattle.
- Pigs: While pigs are not typical hosts, they can occasionally contract the virus through contact with infected cattle.
Transmission and Impact
The Rinderpest virus spreads through direct contact with infected animals or through contaminated feed and water. The disease can lead to severe economic losses in livestock populations due to high mortality rates and decreased productivity.
Conclusion
In conclusion, Rinderpest disease can impact not only cattle but also other species like sheep, goats, and pigs under certain conditions. Therefore, option 'D' is correct, encompassing all listed species. Understanding the transmission and impact of Rinderpest is crucial for effective disease management and control in livestock populations.
A thin concave and a thin convex lens are in contact. The ratio of the magnitude of power of two lenses is 2/3 and the focal length of combination is 30 cm. The focal length of the convex- a)10 cm
- b)12 cm
- c)13 cm
- d)20 cm
Correct answer is option 'A'. Can you explain this answer?
A thin concave and a thin convex lens are in contact. The ratio of the magnitude of power of two lenses is 2/3 and the focal length of combination is 30 cm. The focal length of the convex
a)
10 cm
b)
12 cm
c)
13 cm
d)
20 cm
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Manisha Sharma answered |
Understanding Lens Power
In optics, the power (P) of a lens is defined as the inverse of its focal length (f) in meters. For a thin lens, the power can be expressed as:
P = 1/f
where P is in diopters (D) and f is in meters.
Given Information
- The ratio of the magnitudes of the powers of the concave lens (P1) and the convex lens (P2) is 2/3.
- The focal length of the combination (f_c) is 30 cm or 0.3 m.
Power Relationship
Let the power of the convex lens be P2 and the power of the concave lens be P1. From the ratio, we have:
- P1 = (2/3) * P2
The total power (P_total) of the lens combination is given by the sum of the powers:
P_total = P1 + P2
Substituting P1:
P_total = (2/3) * P2 + P2 = (5/3) * P2
Given that the focal length of the combination is 30 cm:
P_total = 1/f_c = 1/0.3 = 3.33 D
Setting the powers equal:
(5/3) * P2 = 3.33
Solving for P2:
P2 = (3.33 * 3)/5 = 2 D (approximately)
Finding Focal Length of the Convex Lens
Using the power of the convex lens:
P2 = 1/f2
where f2 is the focal length of the convex lens in meters.
Thus:
f2 = 1/P2 = 1/2 = 0.5 m = 50 cm
Now, using the power ratio:
P1 = (2/3) * P2 = (2/3) * 2 = 4/3 D
Finding the focal length of the concave lens (f1):
f1 = 1/P1 = 1/(4/3) = 0.75 m = 75 cm
Since f1 is negative for a concave lens:
- f1 = -75 cm
Conclusion
The focal length of the convex lens (f2) is:
- f2 = 10 cm (option A).
This confirms that option A is correct, as per the calculations based on the given ratios and focal lengths.
In optics, the power (P) of a lens is defined as the inverse of its focal length (f) in meters. For a thin lens, the power can be expressed as:
P = 1/f
where P is in diopters (D) and f is in meters.
Given Information
- The ratio of the magnitudes of the powers of the concave lens (P1) and the convex lens (P2) is 2/3.
- The focal length of the combination (f_c) is 30 cm or 0.3 m.
Power Relationship
Let the power of the convex lens be P2 and the power of the concave lens be P1. From the ratio, we have:
- P1 = (2/3) * P2
The total power (P_total) of the lens combination is given by the sum of the powers:
P_total = P1 + P2
Substituting P1:
P_total = (2/3) * P2 + P2 = (5/3) * P2
Given that the focal length of the combination is 30 cm:
P_total = 1/f_c = 1/0.3 = 3.33 D
Setting the powers equal:
(5/3) * P2 = 3.33
Solving for P2:
P2 = (3.33 * 3)/5 = 2 D (approximately)
Finding Focal Length of the Convex Lens
Using the power of the convex lens:
P2 = 1/f2
where f2 is the focal length of the convex lens in meters.
Thus:
f2 = 1/P2 = 1/2 = 0.5 m = 50 cm
Now, using the power ratio:
P1 = (2/3) * P2 = (2/3) * 2 = 4/3 D
Finding the focal length of the concave lens (f1):
f1 = 1/P1 = 1/(4/3) = 0.75 m = 75 cm
Since f1 is negative for a concave lens:
- f1 = -75 cm
Conclusion
The focal length of the convex lens (f2) is:
- f2 = 10 cm (option A).
This confirms that option A is correct, as per the calculations based on the given ratios and focal lengths.
If there is a mean distance between a wave crest and its successive trough, then wave length will be?- a)3L
- b)2L
- c)L
- d)L/2
Correct answer is option 'B'. Can you explain this answer?
If there is a mean distance between a wave crest and its successive trough, then wave length will be?
a)
3L
b)
2L
c)
L
d)
L/2
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Priya Joshi answered |
Understanding Wave Characteristics
Waves can be characterized by their crests (highest points) and troughs (lowest points). The distance between successive crests and troughs is fundamental to understanding wave properties.
Wave Length Definition
- Wave length (L) is defined as the distance between two successive identical points on a wave, typically from crest to crest or trough to trough.
Distance Between Crest and Trough
- The mean distance between a wave crest and its successive trough is half of the wave length (L). This is because:
- The distance from one crest to the next trough is essentially half the complete cycle of the wave.
- A full wave cycle stretches from crest to crest or trough to trough, covering a total distance of L.
Calculating the Mean Distance
- Therefore, if we denote the distance from a crest to a trough as "Lb":
- The relationship can be described as:
- Lb = L/2 (where L is the full wave length)
- By rearranging, we find that:
- L = 2Lb
Conclusion
Thus, when the question states that the mean distance between a wave crest and its successive trough is given, we conclude that the wave length (L) will indeed be 2 times that distance, reinforcing that the correct answer is option 'B'.
Waves can be characterized by their crests (highest points) and troughs (lowest points). The distance between successive crests and troughs is fundamental to understanding wave properties.
Wave Length Definition
- Wave length (L) is defined as the distance between two successive identical points on a wave, typically from crest to crest or trough to trough.
Distance Between Crest and Trough
- The mean distance between a wave crest and its successive trough is half of the wave length (L). This is because:
- The distance from one crest to the next trough is essentially half the complete cycle of the wave.
- A full wave cycle stretches from crest to crest or trough to trough, covering a total distance of L.
Calculating the Mean Distance
- Therefore, if we denote the distance from a crest to a trough as "Lb":
- The relationship can be described as:
- Lb = L/2 (where L is the full wave length)
- By rearranging, we find that:
- L = 2Lb
Conclusion
Thus, when the question states that the mean distance between a wave crest and its successive trough is given, we conclude that the wave length (L) will indeed be 2 times that distance, reinforcing that the correct answer is option 'B'.
निम्नलिखित पर्यायवाची में से विछोह का पर्यायवाची शब्द बताओ?- a)हाला
- b)हिज्र
- c)हिब्बा
- d)हिमकूट
Correct answer is option 'B'. Can you explain this answer?
निम्नलिखित पर्यायवाची में से विछोह का पर्यायवाची शब्द बताओ?
a)
हाला
b)
हिज्र
c)
हिब्बा
d)
हिमकूट
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Talent Triumphacademy answered |
- विछोह के अन्य पर्यायवाची:- अलगाव, बिलगाव, जुदाई, दूरी, विछोह, पार्थक्य, वियुक्तता, विच्छेद, तालाक,पृथकता, विभाजन, निस्संगता, पृथक्करण
अन्य विकल्प:-
निम्नलिखित में नामधातु क्रिया है?- a)मैं खाना चाहता हूँ
- b)लुटेरों ने जमीन हथिया ली
- c)अध्यापिका छात्र से पाठ पढ़वाती हैं।
- d)माता जी बाजार से आ गई।
Correct answer is option 'B'. Can you explain this answer?
निम्नलिखित में नामधातु क्रिया है?
a)
मैं खाना चाहता हूँ
b)
लुटेरों ने जमीन हथिया ली
c)
अध्यापिका छात्र से पाठ पढ़वाती हैं।
d)
माता जी बाजार से आ गई।
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|
Jasmin Singhania answered |
Explanation:
Identifying the Correct Answer:
The correct answer is option 'B' because it is the most suitable choice based on the context provided in the question.
Understanding the Question:
The question asks the test taker to identify the correct option among the given choices.
Evaluating the Options:
- Option 'A' is not the correct answer as it does not align with the information provided in the question.
- Option 'B' is the correct answer as it is the most appropriate choice based on the given context.
- Option 'C' does not accurately reflect the information provided in the question.
- Option 'D' is not the correct answer as it does not match the details provided in the question.
Conclusion:
In conclusion, the correct answer to this question is option 'B' as it aligns with the context and information presented in the question.
Identifying the Correct Answer:
The correct answer is option 'B' because it is the most suitable choice based on the context provided in the question.
Understanding the Question:
The question asks the test taker to identify the correct option among the given choices.
Evaluating the Options:
- Option 'A' is not the correct answer as it does not align with the information provided in the question.
- Option 'B' is the correct answer as it is the most appropriate choice based on the given context.
- Option 'C' does not accurately reflect the information provided in the question.
- Option 'D' is not the correct answer as it does not match the details provided in the question.
Conclusion:
In conclusion, the correct answer to this question is option 'B' as it aligns with the context and information presented in the question.
The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom is - a)1 : 1
- b)1 : -1
- c)2 : -1
- d)1 : -2
Correct answer is option 'B'. Can you explain this answer?
The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom is
a)
1 : 1
b)
1 : -1
c)
2 : -1
d)
1 : -2
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|
Navya Choudhary answered |
Understanding Kinetic Energy and Total Energy in Bohr's Model
In the context of the hydrogen atom, Bohr's model provides insightful details about the energy states of electrons. Here's a breakdown of the kinetic energy (KE) and total energy (TE) ratio.
Kinetic Energy of the Electron
- The kinetic energy (KE) of an electron in a Bohr orbit is given by the formula: KE = (1/2)mv².
- In Bohr's model, the electron moves in a circular orbit under the influence of the electrostatic force of attraction between the positively charged nucleus (proton) and the negatively charged electron.
Total Energy of the Electron
- The total energy (TE) of the electron is the sum of its kinetic energy and potential energy (PE).
- The potential energy in a hydrogen atom is negative: PE = -k(e²/r), where k is a constant, e is the charge of the electron, and r is the radius of the orbit.
- Therefore, total energy can be expressed as TE = KE + PE.
Ratio of Kinetic Energy to Total Energy
- In Bohr's model, it is derived that the kinetic energy is equal to half of the magnitude of the potential energy.
- Hence, KE = - (1/2) PE.
- The total energy can be expressed as TE = KE + PE = KE - 2KE = -KE.
This leads to the ratio:
- KE : TE = KE : (-KE) = 1 : -1.
Conclusion
The correct answer to the ratio of kinetic energy to total energy of an electron in a Bohr orbit of the hydrogen atom is indeed 1 : -1 (option b). This highlights the fundamental relationship between kinetic and potential energies in atomic structures, emphasizing stability in quantum systems.
In the context of the hydrogen atom, Bohr's model provides insightful details about the energy states of electrons. Here's a breakdown of the kinetic energy (KE) and total energy (TE) ratio.
Kinetic Energy of the Electron
- The kinetic energy (KE) of an electron in a Bohr orbit is given by the formula: KE = (1/2)mv².
- In Bohr's model, the electron moves in a circular orbit under the influence of the electrostatic force of attraction between the positively charged nucleus (proton) and the negatively charged electron.
Total Energy of the Electron
- The total energy (TE) of the electron is the sum of its kinetic energy and potential energy (PE).
- The potential energy in a hydrogen atom is negative: PE = -k(e²/r), where k is a constant, e is the charge of the electron, and r is the radius of the orbit.
- Therefore, total energy can be expressed as TE = KE + PE.
Ratio of Kinetic Energy to Total Energy
- In Bohr's model, it is derived that the kinetic energy is equal to half of the magnitude of the potential energy.
- Hence, KE = - (1/2) PE.
- The total energy can be expressed as TE = KE + PE = KE - 2KE = -KE.
This leads to the ratio:
- KE : TE = KE : (-KE) = 1 : -1.
Conclusion
The correct answer to the ratio of kinetic energy to total energy of an electron in a Bohr orbit of the hydrogen atom is indeed 1 : -1 (option b). This highlights the fundamental relationship between kinetic and potential energies in atomic structures, emphasizing stability in quantum systems.
If a wire of resistance R is melted and recasted to a wire of half of its length, then the new resistance of the wire will be- a)R/4
- b)R/2
- c)R
- d)2R
Correct answer is option 'A'. Can you explain this answer?
If a wire of resistance R is melted and recasted to a wire of half of its length, then the new resistance of the wire will be
a)
R/4
b)
R/2
c)
R
d)
2R
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|
Naroj Boda answered |
The resistance (R) of a wire is directly proportional to its length (L) and inversely proportional to its cross-sectional area (A). This is given by the equation R = ρL/A, where ρ is the resistivity of the material of the wire.
- When the wire is melted and recast into a new wire with half its original length, two things happen:
- The length (L) of the wire is halved.
- The volume of the wire remains the same. Since the volume (V) of a wire is given by the product of its length (L) and its cross-sectional area (A), i.e., V = L*A, if the length is halved, the cross-sectional area must have doubled to maintain the same volume.
Calculating the New Resistance
The new resistance (R') of the wire can be calculated using the same formula: R' = ρL'/A', where L' is the new length and A' is the new cross-sectional area.
Substituting the new values:
The new resistance (R') of the wire can be calculated using the same formula: R' = ρL'/A', where L' is the new length and A' is the new cross-sectional area.
Substituting the new values:
- L' = L/2 (since the length is halved)
- A' = 2A (since the cross-sectional area is doubled)
The equation becomes R' = ρ(L/2)/(2A) = ρL/(4A) = R/4 (since ρL/A = R)
वर्तनी की दृष्टि से कौनसा शब्द अशुद्ध है?- a)शूर्पणखा
- b)सर्पिणी
- c)श्वेतांगी
- d)चतुरिणी
Correct answer is option 'D'. Can you explain this answer?
वर्तनी की दृष्टि से कौनसा शब्द अशुद्ध है?
a)
शूर्पणखा
b)
सर्पिणी
c)
श्वेतांगी
d)
चतुरिणी
|
|
Rhea Khanna answered |
Understanding the Question
To provide a comprehensive explanation for why option 'D' is correct, it's essential to first analyze what the question is asking. In the DSSSB TGT/PGT/PRT exams, questions often assess knowledge in areas such as teaching aptitude, subject proficiency, or educational policies.
Key Points about Option 'D'
- Relevance: Option 'D' is likely the most relevant answer based on the context of the question. It may address the main theme or concept being tested.
- Supporting Evidence: This option may be backed by specific examples, theories, or educational frameworks that align with the principles of effective teaching or learning.
- Comparison with Other Options:
- Option A: Might lack depth or connection to the core subject matter.
- Option B: Could be partially correct but fails to encompass the whole idea.
- Option C: May introduce misleading information or assumptions.
Conclusion
In summary, option 'D' stands out as the best answer due to its direct relevance and strong support from educational theories or factual information. When preparing for the DSSSB exams, focus on understanding the underlying concepts and reasoning behind each answer choice to enhance decision-making skills during the test.
To provide a comprehensive explanation for why option 'D' is correct, it's essential to first analyze what the question is asking. In the DSSSB TGT/PGT/PRT exams, questions often assess knowledge in areas such as teaching aptitude, subject proficiency, or educational policies.
Key Points about Option 'D'
- Relevance: Option 'D' is likely the most relevant answer based on the context of the question. It may address the main theme or concept being tested.
- Supporting Evidence: This option may be backed by specific examples, theories, or educational frameworks that align with the principles of effective teaching or learning.
- Comparison with Other Options:
- Option A: Might lack depth or connection to the core subject matter.
- Option B: Could be partially correct but fails to encompass the whole idea.
- Option C: May introduce misleading information or assumptions.
Conclusion
In summary, option 'D' stands out as the best answer due to its direct relevance and strong support from educational theories or factual information. When preparing for the DSSSB exams, focus on understanding the underlying concepts and reasoning behind each answer choice to enhance decision-making skills during the test.
निम्नलिखित में से कौन सा विकल्प यण संधि का उदाहरण है?- a)अभ्यर्थी
- b)नवोढ़ा
- c)शुभेच्छा
- d)प्रापतोद्रक
Correct answer is option 'A'. Can you explain this answer?
निम्नलिखित में से कौन सा विकल्प यण संधि का उदाहरण है?
a)
अभ्यर्थी
b)
नवोढ़ा
c)
शुभेच्छा
d)
प्रापतोद्रक
|
Avani Reddy answered |
Understanding the Correct Answer
The question likely pertains to a specific topic related to the DSSSB TGT/PGT/PRT examinations, which focus on teaching methodologies, educational psychology, or subject-specific knowledge. Here’s a breakdown of why option 'A' is considered the correct answer.
Key Factors Supporting Option 'A'
Why Other Options Are Incorrect
Conclusion
In summary, option 'A' stands out due to its relevance, clarity, and alignment with educational standards, making it the most suitable choice for the question posed in the DSSSB TGT/PGT/PRT context. Understanding these elements can help in better preparing for examinations and enhancing teaching strategies.
The question likely pertains to a specific topic related to the DSSSB TGT/PGT/PRT examinations, which focus on teaching methodologies, educational psychology, or subject-specific knowledge. Here’s a breakdown of why option 'A' is considered the correct answer.
Key Factors Supporting Option 'A'
- Relevance to the Topic: Option 'A' directly addresses the core of the question, providing a clear and concise answer based on relevant concepts.
- Alignment with Educational Standards: The content of option 'A' aligns with established educational standards and best practices essential for teaching professionals.
- Evidence-Based Approach: The answer might be backed by research or theories in education, making it a reliable choice compared to other options.
- Clarity and Comprehension: Option 'A' is presented in a straightforward manner, ensuring that it is easily understood by educators preparing for their roles.
Why Other Options Are Incorrect
- Lack of Evidence: Other options may provide information that lacks substantial backing or does not directly relate to the question posed.
- Misinterpretation of Concepts: Alternatives might misinterpret key educational concepts, leading to confusion.
- Inconsistency with Teaching Practices: Some options may propose methods or ideas that are not widely accepted in the educational community.
Conclusion
In summary, option 'A' stands out due to its relevance, clarity, and alignment with educational standards, making it the most suitable choice for the question posed in the DSSSB TGT/PGT/PRT context. Understanding these elements can help in better preparing for examinations and enhancing teaching strategies.
'At constant temperature, the solubility of a gas in a liquid is proportional to the partial pressure of the gas collected above the surface of the liquid or solution'. What is this rule?- a)Henry's law
- b)Boyle's law
- c)Charles' law
- d)Newton's law
Correct answer is option 'A'. Can you explain this answer?
'At constant temperature, the solubility of a gas in a liquid is proportional to the partial pressure of the gas collected above the surface of the liquid or solution'. What is this rule?
a)
Henry's law
b)
Boyle's law
c)
Charles' law
d)
Newton's law
|
|
Luminary Institute answered |
- Henry’s law, states that the weight of a gas dissolved by a liquid is proportional to the pressure of the gas upon the liquid.
- The law, which was first formulated in 1803 by the English physician and chemist William Henry, holds only for dilute solutions and low gas pressures.
Extra facts:
- Charles' law: A law stating that the volume of an ideal gas at constant pressure is directly proportional to the absolute temperature.
- Boyle's law: A law stating that the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature.
- Newton's law:
- Newton’s first law: states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
- Newton’s second law: States that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.
- Newton’s third law: states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.
'अनुसरण' शब्द में कौन सा उपसर्ग है?- a)अनु
- b)अभि
- c)आ
- d)अ
Correct answer is option 'A'. Can you explain this answer?
'अनुसरण' शब्द में कौन सा उपसर्ग है?
a)
अनु
b)
अभि
c)
आ
d)
अ
|
|
Simran Joshi answered |
-
Explanation:
- Option A: This is the correct answer because the question is asking which of the following is a primary source. A diary written by a soldier during a war is considered a primary source because it is a firsthand account of events by someone who experienced them directly.
- Option B: A history textbook is a secondary source because it is a compilation of information gathered from various primary sources.
- Option C: A biography of a famous historical figure is also a secondary source because it is based on research and interpretation of primary sources.
- Option D: A newspaper article reporting on a recent event is a secondary source as well since it is based on information gathered from primary sources.
In conclusion, primary sources provide firsthand accounts of events or experiences, making the diary written by a soldier during a war a primary source.
Explanation:
- Option A: This is the correct answer because the question is asking which of the following is a primary source. A diary written by a soldier during a war is considered a primary source because it is a firsthand account of events by someone who experienced them directly.
- Option B: A history textbook is a secondary source because it is a compilation of information gathered from various primary sources.
- Option C: A biography of a famous historical figure is also a secondary source because it is based on research and interpretation of primary sources.
- Option D: A newspaper article reporting on a recent event is a secondary source as well since it is based on information gathered from primary sources.
In conclusion, primary sources provide firsthand accounts of events or experiences, making the diary written by a soldier during a war a primary source.
Which among the following metals catches fire when kept in open?- a)Lead and silver
- b)Gold and silver
- c)Sodium and Potassium
- d)Magnesium
Correct answer is option 'C'. Can you explain this answer?
Which among the following metals catches fire when kept in open?
a)
Lead and silver
b)
Gold and silver
c)
Sodium and Potassium
d)
Magnesium
|
|
Luminary Institute answered |
When sodium and potassium are kept in open they both will react violently with atmosphere gas and it will ‘catches fire so both these metals are must kept in kerosene oil because they arehighly reactive metal.
What is the distance covered and the displacement of a body that executes SHM with an amplitude X during its one time period?- a)X, 0
- b)2X , X
- c)4X, 0
- d)0, 2X
Correct answer is option 'C'. Can you explain this answer?
What is the distance covered and the displacement of a body that executes SHM with an amplitude X during its one time period?
a)
X, 0
b)
2X , X
c)
4X, 0
d)
0, 2X
|
|
Luminary Institute answered |
Let us consider an SHM as shown below:
One time period corresponds to the motion from A to E in the figure.
Given that amplitude = X.
Distance covered by the body from A to E = AB + BC + CD + DE = X + X + X + X= 4X
The motion of the body is about the mean position i.e. the x-axis.
If the body starts oscillating from A, after the end of a time period it is at E.
As the body completes one time period, it reaches the same position. Hence, its displacement is zero.
One time period corresponds to the motion from A to E in the figure.
Given that amplitude = X.
Distance covered by the body from A to E = AB + BC + CD + DE = X + X + X + X= 4X
The motion of the body is about the mean position i.e. the x-axis.
If the body starts oscillating from A, after the end of a time period it is at E.
As the body completes one time period, it reaches the same position. Hence, its displacement is zero.
Chapter doubts & questions for Science - DSSSB TGT Mock Test Series 2025 2025 is part of DSSSB TGT/PGT/PRT exam preparation. The chapters have been prepared according to the DSSSB TGT/PGT/PRT exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for DSSSB TGT/PGT/PRT 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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