KVS PGT Physics Mock Test - 7 - KVS PGT/TGT/PRT MCQ

The student requested the teacher to allow him to leave the class early. Thus, Option 1 depicts the correct answer as no other alternative makes correct grammatical sense.

दिए गए विकल्पों में से विकल्प 3 "सामने जो बड़ा सा मकान है, वह मेरा है।" वाक्य में ‘निश्चयवाचक सर्वनाम’ का प्रयोग हुआ है। अन्य विकल्प सही नहीं है ।

Key Points

• "सामने जो बड़ा सा मकान है, वह मेरा है।" वाक्य में ‘निश्चयवाचक सर्वनाम’ का प्रयोग हुआ है।
• जिन सर्वनाम शब्दों से किसी निश्चित व्यक्ति अथवा वस्तु की ओर निकटवर्ती अथवा दूरवर्ती संकेत का बोध होता है उन्हें निश्चयवाचक सर्वनाम कहते हैं।
  • इनके अंतर्गत यह, वह, इस, उस, ये, वे इत्यादि सर्वनाम शब्द आते हैं
• दिए गए विकल्पों में केवल विकल्प 3 ही निश्चित वाचक सर्वनाम है। इसीलिए वह सामने जो बड़ा सा मकान है, वह मेरा है। सही है।

Confusion Points

• वह एक बार फिर अपने विद्यालय में प्रथम स्थान पर रही।
• वह कहाँ गया है?
• दोनों वाक्यों में वह का प्रयोग तो हुआ है लेकिन निकटवर्ती अथवा दूरवर्ती संकेत का बोध नहीं हो रहा है ,इसीलिए यहाँ निश्चितवाचक सर्वनाम नहीं हुआ है।

Additional Information

The correct answer is Mercury.

• Mercury planet is the closest planet to the Sun.

​Key Points

• Mercury:
  • The smallest planet in our solar system
  • It is nearest to the Sun.
  • It's only slightly larger than Earth's Moon.

The correct answer is 2009.

Key Points

• The 86th amendment to the constitution of India in 2002, provided the Right to Education as a fundamental right in part-III of the Constitution.
• The first official document on the Right to Education was Ramamurti Committee Report in 1990.
• Tapas Majumdar Committee (1999) was set up, which encompassed the insertion of Article 21A.
• The Right to Education serves as a building block to ensure that every child has his or her right to get a quality elementary education.

Important Points

• Features of Right to Education (RTE) Act, 2009 -
  • The RTE Act aims to provide primary education to all children aged 6 to 14 years.
  • It enforces Education as a Fundamental Right (Article 21).
  • The act mandates 25% reservation for disadvantaged sections of the society.
  • It had a clause for “No Detention Policy” which has been removed under The Right of Children to Free and Compulsory Education (Amendment) Act, 2019.
  • It also states that sharing of financial and other responsibilities between the Central and State Governments.

Additional Information

• Some important 'Parts' of the Indian Constitution:
  • Part 2 - Citizenship
  • Part 3 - Fundamental Rights
  • Part 4 - Directive Principles of State Policy
  • Part 4A - Fundamental Duties
  • Part 14 - UPSC and SPSC.
  • Part 15 - Election Commission
  • Part 17 - Official language
  • Part 20 - Amendment of Constitution

Objectives of Early Childhood Education: The aim of Early Childhood Care and Education (ECCE) is to facilitate the optimum development of the child’s full potential and lay the foundation for all-round development and lifelong learning.

Key Points

This aim is to be achieved through enabling the child to:

• Develop a positive self-concept.
• Establish a sound foundation for a good physique, adequate muscular coordination and basic motor skills.
• Imbibe good health habits and basic life skills/ self-help skills necessary for personal social adjustment.
• Enhance verbal and non-verbal communication skills which would facilitate the expression of thoughts and feelings in fluent, correct, clear speech.
• Develop the five senses and cognitive skills and concepts which are the foundation for higher-order thinking and reasoning.
• Develop emotional maturity by guiding the child to express, understand, accept and control feelings and emotions.
• Imbibe values, social attitudes and manners important in his/her socio-cultural context and to become sensitive to the rights and privileges of others.
• Develop independence, aesthetic appreciation and creativity by providing a child with sufficient opportunities for self-expression and active exploration, investigation and experimentation.
• Make a smooth transition from preschool to primary through the development of emergent literacy and school readiness. 

Hence, we conclude that the developmental objectives in the curriculum framework for early childhood development is towards all the above points.

Child development refers to the sequence of physical, language, thought and emotional changes that occur in a child from birth to the beginning of adulthood. During this process, a child progresses from dependency on their parents/guardians to increasing independence.

Key Points

Human beings play an active role in their own development. Countless factors, from family and environment to genes and biology, influence a child’s growth and development. Every child brings to life the environment of one's program.

Important Points

The development of the child is influenced by:-

• Teacher’s behavior towards the child:- Teachers must give recognition for their effort or achievement so that children will not be discouraged by their failure and try again. Teacher's behavior plays an important role in a child's development.
• Parent’s behavior towards the child:- The child-parent relationship has a major influence on a child's development. Parents might endorse or value being warm and responsive to children, but have difficulty expressing those feelings when their child is misbehaving. As a result of this realization, the study of parent cognitions has been widened to include more specific ways of thinking. Parenting skills and behavior have a positive impact on a child's development.
• Peer influence on the child:- Children begin their lives in the social world of their families, however, as they mature they are introduced to the social world of peers and spend increasing amounts of time with kids of their own age. Peer relationships are more balanced and the partners tend to bring similar levels of ability, reasoning, and skill to their interactions. Peer relationships provide a unique context in which children learn a range of critical social-emotional skills, such as empathy, cooperation, and problem-solving strategies. So, peer influence on the child plays an important role in child development.

Hence, we can conclude that all of the above factors are influence the development of the child.

Key Points Curriculum

• A curriculum is all of the experiences that individual learners have in a program of education whose purpose is to achieve broad goals and related specific objectives, which is planned in terms of a framework of theory and research or past and present professional practice.
• The curriculum is a complete set of taught material including a list of planned learning experiences offered to the students under the direction of the school. 
• In other words, the curriculum is a blueprint of experiences that have been planned for the students.
• The curriculum revolves around the design, development, and evolution of an appropriate delivery strategy, and undertakes learning outcomes and system and course evaluation processes.

Syllabus

• The syllabus contains the online course objectives and the time required to achieve them.
• It is a descriptive set of subjects that has to be taught in the class.
• The syllabus explains the summary of different topics covered or units that will be taught in a specific subject or discipline under that particular course.
• It pertains to a particular level of instruction, and to achieve the objectives of such a syllabus, different institutions may use different courses.

Hence, we conclude that the complete set of taught material in the school system is also known as the Curriculum.

Diversity in literary terms means differences. The term diversity, when used in discourse related to people or communities or in social contexts is more specific, indicates that a group of people is made up of individuals who are different from each other in some way or the other or it means collective differences among people, that is, those differences which mark off one group of people from another.

Key Points

• A diverse education system refers to an education system that accommodates all children regardless of their physical, intellectual, social, emotional, linguistic, or other conditions.
• It means to teach or treat all the children equally. There would be no discrimination in a diverse education system.
• This system is the same as Inclusive education i.e. including children with disabilities in regular classrooms that have been designed for children without disabilities and to create safe learning environments that are equitable for all.
• NCF (2005)  gives significance to child-centered pedagogy that can meet the range of challenges confronting the inclusive school system.

Thus, it is concluded that Diverse education system refers to welcoming all children without discrimination in the regular school.

Ivan Pavlov, a Russian psychologist has propounded the 'Theory of Classical Conditioning' which emphasizes that learning as a habit formation is based on the principle of association and substitution.

Key Points

• Dog was involved in Pavlov’s experiment of classical conditioning. During his experiment, Pavlov noticed that dog started secreting saliva as soon as the dog saw the empty plate in which food was served. Saliva secretion is a reflexive response to food or something in the mouth.  

Let's have a look at Pavlov’s experiment:

• Pavlov was studying the gastric secretion of the dogs by placing meat powder in their mouth and measuring the saliva.
• A bell was sounded and immediately thereafter food (meat powder) was served to the dog. The dog was allowed to eat it.
• For the next few days, every time the meat powder was presented, it was preceded by the sound of a bell
• After a number of such trials, a test trial was introduced in which everything was the same as the previous trials except that no food followed the sounding of the bell.
• The dog still salivated to the sound of the bell, expecting the presentation of the meat powder as the sound of the bell had come to be connected with it.
• This association between the bell and food resulted in the acquisition of a new response by the dog, i.e. salivation to the sound of the bell. This has been termed as conditioning.
• All dogs salivate when they are presented with food. Food is thus an Unconditioned Stimulus (US) and salivation, which follows it, is an Unconditioned Response (UR).
• After conditioning, salivation started to occur in the presence of the sound of the bell. The bell becomes a Conditioned Stimulus (CS) and saliva secretion a Conditioned Response (CR). This kind of conditioning is called classical conditioning.

Hence, it could be concluded that Dog was involved in Pavlov’s experiment of classical conditioning. 

NOTE: Pigeon and rabbit were involved in Skinner’s experiment of operant conditioning.

FLN refers to FOUNDATIONAL LITERACY AND NUMERACY which is the highest priority of National Education Policy 2020. The National Education Policy 2020 states that “Our highest priority must be to achieve universal foundational literacy and numeracy (FLN) in primary school and beyond by 2025.

Key Points

The Education system aims to achieve Foundational Literacy and Numeracy by 2026-27, where, by Grade 3 every child can Read with Comprehension, Write, Basic Mathematical Operations, and Learn basic life skills.

• The program will be implemented in mission mode, with the use and strengthening of the existing mainstream structures.
• The Department of School Education and Literacy, Ministry of Education (MoE) will be the implementing agency at the national level and will be headed by a Mission Director.
• A National Book Promotion Policy will be launched for the achievement of foundational Literacy and Numeracy.
• The pre-existing knowledge of the language helps in building literacy skills in languages. The key components in Foundational Language and Literacy are Oral Language Development, deciphering written words, Reading Fluency, Reading Comprehension, and competencies of writing.
• Foundational Numeracy means the ability to reason and to apply simple numerical concepts in daily life problem-solving. The major aspects and components of early mathematics are Pre-number concepts, Numbers and operations on numbers, space, and spatial understanding and measurement skills.

Hence, we conclude that the National Book Promotion Policy was recommended by NEP 2020 for FLN achievement.

σ=Stress and ε=strain
σ=F/A= (550kg) × (9.81m/s²)3×10-5m²/=0.18GPA
ε=Δl/l0=σ/Υ​=0.18×10⁹/200×109​=9×10^-4
Δl=εl₀= (9×10^-4) (2m) = 0.0018m=1.8mm

We know that,
C_p=c_v+R
E=3Rt/2
also,
E=C_v
c_p=R+3RT/2
=5/2 RT
=2.5R

The resistance is R=200ohm the inductor is L=0.4 H, the capacitance is C=5  µF and the amplitude voltage is V=CV
The frequency depends on the inductance and the capacitance and it is given by,
f₀=1/ (2π√(LC))  
So, plug the values of L and C into equation 1 to get f₀
f₀=1/ (2π√(LC))=2/(2π√[0.4H)(5x10^-6)]=113Hz
for the current, we use ohm’s law to get the current,
I=V/R
Now, plug the values for V and R to get I
I=V/R=3V/200Ω=0.015A=15mA
 

A reversible process gives the maximum work.

5 km is the distance covered in 5 mins, which means 1 km is the distance covered in 1 min
Hence, it will travel 60 km in 60 mins, i.e. speed = 60 km/hr

Wavelength is calculated as 
1/λ=Rz²(1/n_f²​​=1/n_i²​​)
∴λ∝1/z²
For hydrogen atom, z=1
For Deuterium atom, z=2
For singly ionized helium, z=2
For doubly ionized lithium, z=3
Thus, z is maximum for lithium and so λ is minimum.
Hence the correct answer is option D.

Explanation:Acceleration is a vector quantity because it has both magnitude and direction.When an object has a positive acceleration, the acceleration occurs in the same direction as the movement of the object.When an object has a negative acceleration (it's slowing down), the acceleration occurs in the opposite direction as the movement of the object.

Newton's law of cooling states that the heat released by a body with respect to time (or) the rate of heat released is directly proportional to the difference between the body's temperature and the surrounding temperature. 
dH/dt = k(T – Ts) where t = surrounding's temperature and T = temperature of the body 
Consider two bodies A and B, of equal surface areas, such that A's temperature is more that B's temperature and the surrounding temperature is less than both A and B. Then according to Newton's law of cooling A loses more heat to the surroundings when compared B during the same time interval. So, A will cool faster than B.

Explanation:A will become positive with respect to B because current  indused is in clockwise direction

Energy in 1 revolution=2 x P x a x l=2 x 9 x104 x 0.2 x0.6 j=21600J
Energy in n revolutions= 21600nJ
Power=E/t=21600n/t=21600 x 5=18000 J/s= 108000/746 h.p=144.77 h.p.

Both are different from each other.
Energy × Time=(M¹L²T⁻²)×(T¹)=M¹L²T⁻¹
Force × Velocity=(M¹L¹T⁻²)×(L¹T⁻¹)=M¹L²T⁻³
Impulse × distance=(M¹L¹T⁻¹)×(L¹)=M¹L²T⁻¹
Power=M¹L²T⁻³
Angular Energy=M¹L¹T⁻²

We can generalise it by assuming a positive charge moving away from another positive charge. now both of them are repelling each other with some force. so that positive charge will accelerate which results in the increase in K.E.

Ship 2 gets hit first. The time of flight only depends on the y-component of motion, not the x-component.  The higher you throw something up in the air, the more time it spends in the air.  It can also be shown from equation-

y=v_0y t – ½ g t²=0  

    v_0y for projectile μ1 is greater than for μ2.

The direction of these circular magnetic lines is dependent upon the direction of current. The density of the induced magnetic field is directly proportional to the magnitude of the current. Direction of the circular magnetic field lines can be given by Maxwell's right hand grip rule or Right handed cork screw rule.

Explanation:

Hydrogen is a diatomic gas. (C_V = 2.5R)

Change in internal energy 

ΔU = nCVΔT = 1 x 2.5 x 8.31 x 120 = 2493J = 2.49KJ

The voltage in India is 220 volts, alternating at 50 cycles (Hertz) per second. This is the same as, or similar to, most countries in the world including Australia, Europe and the UK. However, it's different to the 110-120 volt electricity with 60 cycles per second that's used in the United States for small appliances.

Current density is equal to Electric current divided by a given surface area, or it is the current flowing per a given cross section area.
The current density decreases with increase in cross section area which means they are inversely proportional.