HTET TGT Science Mock Test - 9 - HTET MCQ

If a student does a mistake in language comprehensive-type questions, the teacher would provide appropriate questions with solutions and discuss the mistakes in detail.

A documentary provides actual facts related to the topic. Thus, a documentary on water pollution is the most suitable way for teaching the topic.

Lectures are based on theoretical principles, which help students to understand a particular concept. Students won't learn any new things from that. They always think that the lectures are boring. Playing outdoor games make their mind fresh and they also love to play games which develop their mind. So they always try to make something new. Likewise, children love to do experiments so practical work helps them to develop their creativity level. 
Hence, the correct answer is "Lecture".

The question paper is for students so that teachers will get to know how much students have learned. Content coverage will assure the teacher that that question paper covers the complete chapter or not.
Hence, the correct answer is "Content coverage".

Education intends to promote all-round development of the student. Continuous and Comprehensive Evaluation (CCE) is to be carried out in relation to students’ cognitive, affective and psycho-motor growth.

Teachers are the most important resources in educational settings. They are the key figures for any changes required in the educational field. Their patience and perseverance significantly impact a student's success in the classroom.

अध्यापिका के बहुवचन रूप का सबसे अच्छा विकल्प अध्यापिकाएँ है।

• अध्यापिकाएँ से अर्थ है कि एक से अधिक अध्यापिका।

Key Pointsवचन :- शब्दों के उस रूप को जो किसी वस्तु के एक अथवा अनेक होने का बोध कराता है, उसे वचन कहते हैं।

वचन के दो भेद हैं -

वाक्य के अनुसार नदी का बहुवचन शब्द नदियों होगा।

Confusion Points

• नदी का बहुवचन शब्द नदियाँ भी हो सकता है परन्तु उपरोक्त वाक्य के अनुसार सटीक शब्द नदियों ही होगा।

Key Pointsबहुवचन शब्द

• शब्द के जिस रूप से अनेकता का बोध हो उसे बहुवचन कहते हैं।
• जैसे-लड़के, गायें, कपड़े, टोपियाँ

एकवचन शब्द

• शब्द के जिस रूप से एक ही वस्तु का बोध हो, उसे एकवचन कहते हैं।
• जैसे-लड़का, गाय, सिपाही, बच्चा, कपड़ा, माता, माला, पुस्तक, स्त्री, टोपी बंदर, मोर आदि।

Additional Information

मैं आजकल घूमने जाता हूँ।शुद्ध वाक्य है। Key Points

• वाक्य शुद्धि - लिखने एवं बोलने में इस बात का ध्यान रखना कि जो कुछ भी लिखा या कहा जा रहा है वह बिल्कुल सार्थक एवं व्याकरण के नियमानुसार शुद्ध हो।
• उदाहरण - मुझे यह अच्छा नही लगता।

Additional Information

अन्य उदाहरण -

बस छूट गई होगी वाक्य के काल का सही विकल्प संदिग्ध भूतकाल होगा।

• संदिग्ध भूतकाल - इसमें यह सन्देह बना रहता है कि भूतकाल में कार्य पूरा हुआ या नही।

Key Pointsअन्य विकल्पों का विश्लेषण -

Additional Informationकाल - क्रिया के जिस रूप से कार्य करने या होने के समय का ज्ञान होता है उसे ‘काल’ कहते है।

काल तीन प्रकार होते है

• वर्तमान काल।
• भूतकाल।
• भविष्यत काल।

सही उत्तर है - परिश्रम का फल अवश्य मिलता है।

• जो परिश्रमी होते हैं भले ही सफलता उन्हें देर से मिले लेकिन एक दिन अवश्य अपनी मंजिल पाने में सफल होते हैं।
• इसलिए परिश्रम का फल अवश्य मिलता है।

Key Pointsइसी लोकोक्ति से मिलता कबीर का एक दोहा भी है -

• जिन खोजा तिन पाइया, गहरे पानी पैठ, मैं बपुरा बूडन डरा, रहा किनारे बैठ।
  • अर्थात - जो प्रयत्न करते हैं, वे कुछ न कुछ वैसे ही पा ही लेते हैं जैसे कोई मेहनत करने वाला गोताखोर गहरे पानी में जाता है और कुछ ले कर आता है. लेकिन कुछ बेचारे लोग ऐसे भी होते हैं जो डूबने के भय से किनारे पर ही बैठे रह जाते हैं और कुछ नहीं पाते.

और - संयुक्त वाक्य का योजक चिन्ह है

The given sentence is in Passive voice.
This sentence emphasizes the surprising nature of a small mouse being able to assist a lion. Option D retains the meaning and structure of the original sentence while conveying the same idea that even a small mouse has the potential to aid a lion.

• Meaning of Quarantine: To separate someone into isolation.
• Meaning of Rescue: save (someone) from a dangerous or difficult situation
• Meaning of Detention: the action of detaining someone or the state of being detained in official custody
• Meaning of Defence: the action of defending from or resisting an attack
• Meaning of Safety: the condition of being protected from or unlikely to cause danger, risk, or injury

Engender is to cause or create.

Hence, Option B is correct.

The correct answer is Nakula - Digvijyams.

• Rohtak derives its name from its headquarters town, Rohtak, which is called the Reformation of Rohtashgarh, a name still applied to the ruined sites of the two old sites.
  • Traditionally, it is named after King Rohtash, in whose days the city is said to have been built.
  • It is also claimed that the city derives its name from the Roherra (Tacoma undulate) tree which is called Rohitaka in Sanskrit.
  • It is said that before the city came into existence, it was the site of a forest of Rohitaka trees and hence the name Rohtak.
  • Another version links Rohtak with Rohitaka, which is mentioned in the Mahabharata in connection with the campaign of the Pandava warrior Nakula.

Additional Information

• Divyavadana (meaning Divine Tales) is a text of Buddhist tales.
  • The origin of many of these stories is the original Mool Sarvastivada Vinaya Granth.
• Majjima Nikaya is a Buddhist text, the second of the five Nikayas or collections in the Sutta Pitaka, one of the "three baskets" that compose the Pali Tipitaka of Theravada Buddhism. Composed between the 3rd century BCE and the 2nd century CE.

12 + 19 + 23 + 7 + x + 9 + 26 + 13 = 16 × 8
109 + x = 128
x = 128 – 109 = 19
Hence, Option D is correct.

Weight of the car = (180 × 7 – 72 × 6) = 828 kg
Hence, Option B is correct.

The correct answer is Shooting.

Key Points

• Shweta Chaudhry was born on 3 July 1986 in Faridabad, Haryana.
• She is an Indian shooter who competes in the 10-meter air pistol and 25-meter sports pistol events.
• Chaudhary won the bronze medal in the women's air pistol event, which was the first medal won by India in the games.
• In 2009, at the 2009 Asian Air Gun Championships in Doha.
• At the age of 14, she became the senior national champion with record-breaking results.
• Chaudhary, along with Sheila Kanungo, won a silver medal at the 2002 Commonwealth Games held in Manchester.

Additional Information

• Chief Minister of Haryana is - Manohar Lal Khattar
• Sex Ratio of Haryana - 879
• Literacy Rate of Haryana - 67.91%
• Lok Sabha seats in Haryana - 10

The number of students who play both the games = (30 + 50 + 40)% – 100% = 20%
Hence, Option D is correct.

Surface feeder takes its food from air water interface or feeds just below water surface. Catla is common fresh water fish variety and is a major surface feeder. The fresh water resources include river, canals, lakes reservoirs etc. 

Focal length= -20(as it is concave lens)
v= -15 (as concave lens always forms virtual and erect image on left of lens)
Putting these values in lens formula,
1/ -20 - 1/u = 1/ -15
-1/ u= 1/-15 + 1/20
-1/u = -4+3/60
-1/u = -1/60
-u = -60
[u =60]

Explanation:
The term 'genetics' was coined by William Bateson. Here is a detailed explanation:
1. Introduction:
- The term 'genetics' refers to the branch of biology that deals with the study of genes, heredity, and variation in living organisms.
- The term was first used in the early 20th century to describe the study of inheritance and the mechanisms by which traits are passed from parents to offspring.
2. William Bateson:
- William Bateson, an English biologist, is credited with coining the term 'genetics.'
- He introduced the term in his book "Mendel's Principles of Heredity" published in 1905.
- Bateson was one of the early pioneers in the field of genetics and played a crucial role in popularizing the work of Gregor Mendel, an Austrian monk who is considered the father of modern genetics.
3. Gregor Mendel:
- Although Gregor Mendel is known for his groundbreaking work on pea plants and the discovery of fundamental laws of inheritance, he did not coin the term 'genetics.'
- Mendel's work laid the foundation for the field of genetics, but it was William Bateson who gave it a distinct name.
4. Other Contributions:
- While Thomas Hunt Morgan and W. Johannsen made significant contributions to the field of genetics, they did not coin the term 'genetics.'
- Thomas Hunt Morgan is known for his research on fruit flies and the discovery of sex-linked inheritance, while W. Johannsen introduced the concept of genes as discrete units of heredity.
Conclusion:
- In conclusion, the term 'genetics' was coined by William Bateson, an English biologist, in the early 20th century.
- Bateson's work and the introduction of this term helped establish genetics as a distinct field of study within biology.

Oxygenated blood carries O₂ to the various tissues, muscles, cells, et(c) from the lungs and heart, while deoxygenated blood carries CO₂ from the organs to the lungs which is removed from the body. In birds and mammals, it is essential to keep the oxygenated blood separated from the deoxygenated blood In this way, only highly oxygenated blood is sent out to the body's tissues for far more efficient diffusion into the cells of the body, giving them more 'fuel' to run cellular respiration in the mitochondria, to make ATP molecules to run the reactions that allow them to maintain body temperature in addition to running all of their metabolic reactions of the body. If they were not separated, it would probably take much longer to perform simple activities and metabolism would be reduced as a consequence.

Energy = v × i × t = 6 × 0.5 × 20 = 60J

A chemical reaction expresses a chemical change. For example, one chemical property of hydrogen is that it will react with oxygen to make water. We can write that as follows:

hydrogen reacts with oxygen to make water

We can represent this chemical change more succinctly as

hydrogen + oxygen → water

where the + sign means that the two substances interact chemically with each other and the → symbol implies that a chemical reaction takes place. But substances can also be represented by chemical formulas. Remembering that hydrogen and oxygen both exist as diatomic molecules, we can rewrite our chemical change as

H₂ + O₂ → H₂O

This is an example of a chemical equation, which is a concise way of representing a chemical reaction. The initial substances are called reactants, and the final substances are called products.

When a body is thrown vertically upward its velocity continuously decreases, kinetic energy also decreases and potential energy increases due to increase in height. 

For a body moving at uniform speed, the distance time graph is a straight line inclined to the time axis, which may pass through origin or some other point on the y- axis.

As in uniform motion, the distance time graph would be a straight line, because the equal distance is covered in equal units of time. 

CONCEPT:

• A mirror is a flat reflective surface. For light rays striking a plane mirror:
  According to the law of reflection, the incident ray, reflected ray, and the normal to the mirror all lie on the same plane.
  Also, the angle of incidence and angle of reflection are equal.

i.e., i=r
Here i is the angle of incidence, and r is the angle of reflection.

EXPLANATION:

For a given condition, if a light ray is an incident on a mirror as shown below, the relation between the angle of incidence and angle of reflection is given as:

i = r₁

Thus the angle between the incident and reflected ray:

i + r₁ = i+i = 2i

Now, after rotating the mirror by angle θ, the relation between the angle of incidence and angle of reflection is given as:

⇒ i₂ = r₂

Thus the angle between the incident and reflected ray:

i₂ + r₂ = i₂+ i₂ = 2 i₂

But from the figure, we can see that:

i₂ = i + θ ⇒ 2 i₂ = 2(i + θ) = 2 i + 2θ

Now we are interested in finding the angle x, i.e., the reflected ray is rotated by angle x, as shown in the figure below:

x = (i + θ ) + θ − r₁

∴ x = i + θ − i + θ

⇒ x = 2 θ