NVS TGT Science Mock Test - 3 - NVS TGT/PGT MCQ

The Richter scale is used to measure the magnitude of an earthquake, representing the energy released during the event.

Assign numbers to letter and move them like given word.

Similarly;
Arrange the given word like the bold value of CALENDAR;

Hence, option B is correct.

From Statement 1:

No one has exam after S.

Three people has exam between S and R.

N has exam before R.

M has exam after Thursday.

W has exam before B.

From, this statement, we get:

 So, from this statement, N has exam immediately after B.

From Statement 2:

Two people have exam before R, who has exam immediately after S.

B has exam after R but not on Saturday.

N has exam immediately after H.

From this statement, M has exam immediately after B.

So, either statement 1 or statement 2 alone is sufficient to answer the question.

Hence option C is correct.

Answer:
Explanation:
When an image is selected, the following options get displayed:
- Add clip art only if it relates to your topic: This option suggests that clip art should only be added if it is relevant to the topic being presented. It is important to choose clip art that enhances the message and supports the content of the presentation.
- Be sure to place at least one clipart image per slide: This option advises the user to include at least one clipart image on each slide. Adding visual elements can help make the presentation more engaging and visually appealing.
- Resize the image so as it takes up as much space as your text: This option recommends resizing the selected image so that it occupies a similar amount of space as the accompanying text. This helps to maintain balance and harmony between the image and the text on the slide.
- (a) and (b): This option indicates that both the options "Add clip art only if it relates to your topic" and "Be sure to place at least one clipart image per slide" are applicable when an image is selected.
In summary, when an image is selected, the options displayed include adding relevant clip art, including at least one clipart image per slide, and resizing the image to maintain a balanced visual layout with the accompanying text.

Disciplinary issues come up when a teacher fails to engage students in a meaningful and constructive programme. The nature of students is volatile. They are easily distracted by things. Only a constructive programme could help them gain attention towards the meaningful tasks conducted in the classroom, so that their mind remains occupied to the most productive tasks.

20 Divisions are equal to the 2A
1 division is equal to 2/20 = 0.1 A
therefore Least count of the Ammeter is 0.1 A.

Initial velocity ,u= 20 m/s. final velocity = o , g = 10ms⁻² . V = u + gt, 0 = 20+(−10)×t20+(−10)×t, t = 20/10 = 2s. time taken to fall in downward direction = 2s. hence total time taken = 2s +2s = 4s.

Archimedes' Principle:
According to Archimedes' principle, when a body is submerged in a liquid, it experiences an upward buoyant force equal to the weight of the liquid displaced by the body. This principle helps in understanding the behavior of objects in fluids, such as water.
Effect on Apparent Weight:
When a body is submerged in a liquid, its apparent weight, which is the weight perceived by an observer, undergoes a change. The apparent weight is the difference between the actual weight of the body and the buoyant force acting on it.
The effect on the apparent weight depends on the relationship between the weight of the body and the buoyant force:
1. If the weight of the body is less than the buoyant force, the body will float and the apparent weight will be less than the actual weight. In this case, the body is buoyed up by a force greater than its own weight, resulting in a decrease in the apparent weight.
2. If the weight of the body is equal to the buoyant force, the body will be in equilibrium and the apparent weight will be equal to the actual weight. In this case, the body neither sinks nor floats, and the apparent weight remains unchanged.
3. If the weight of the body is greater than the buoyant force, the body will sink and the apparent weight will be greater than the actual weight. In this case, the body is pulled down by a force greater than its own weight, resulting in an increase in the apparent weight.
Conclusion:
Based on Archimedes' principle, the apparent weight of a body submerged in a liquid will either decrease or increase depending on whether the body floats or sinks. Therefore, the correct answer is option A: decreases.

The commercial unit of electrical energy is kilowatt hour. 

Consider a plane-mirror and a fixed incident ray of light reflecting from the surface at an angle θi. Before the mirror has rotated, the angle of incidence is θ as is the angle of reflection. If the mirror is rotated through an angle φ the normal is rotated by an angle &phi and thus the angle of incidence increases to θ+φ. Therefore, the angle of reflection must also increase by φ to θ+φ The difference between the final angle of reflection and the initial angle of reflection and is 2φ.
Hence, For a fixed incident ray, the angle of the reflection is twice the angle through which the mirror has rotated: thetaf= 2φ

His displacement will be zero although distance covered is non-zero since he ends up where he started.

Displacement can be zero but distance cannot be zero because distance is the total path covered but displacement is the shortest distance between the initial and final position. It can be zero at the end of one round.

Evaluation is an integral part of the teaching-learning process and not apart from it. One of the important functions of evaluation is to provide feedback to students and teachers, which may help in the improvement of the teaching-learning process. Written tests whether objective or essay type provides information about the product of a task but do not provide adequate information about the process of learning in terms of student's performance on the learning tasks or about the performance itself.

Key Points

A Science teacher administered a test after teaching the topic on 'Respiration' and observed that majority of the students did not understand the difference between respiration and breathing. This could be due to the reason that she could not explain the related concept effectively in the class.

• In every class, there are average, below average, and excellent students.
• If the majority of the students did not understand the concept effectively and responded badly in their test, it means the teacher would not be able to teach the related concept.

Hence, it is clear that this could be due to the reason that she could not explain the related concept effectively in the class.

Hint

• She was not their class teacher:- responded badly in the test do not rely on the class teacher.
• The students could not understand the question correctly- All the students could not understand the question correctly is not the right option as the majority of students responded badly not one or two. If one or two students were there, then this may be the correct option.
• There was usually indiscipline in the class:- It was the teacher's duty to maintain discipline.

By de-Broglie’s equation

Plaster of Paris is commonly used in home decoration. It can be utilized to create decorative wall accents, ceiling tiles, and other architectural details. Additionally, it is popular for making decorative figurines, ornaments, and various crafts due to its versatility and ease of use. These applications highlight the broad range of uses for Plaster of Paris beyond just sculpting and art.

Graphite can conduct electricity because in graphite every carbon atom is bonded to 3 other carbon atoms and has 1 free electron. This free electrons help in conducting electricity.

Air is a mixture.
When we combine more than one type of element, known as a mixture.
The different percentages are showing that these other elements are present.

Metals have 1-3 electrons in their outermost orbit. They are present on the extreme left of the periodic table. They tend to donate electrons and obtain the stable electronic configuration of the nearest noble gas. The valency on metals also ranges from 1-3 .

The proton has a charge equal in magnitude but opposite in sign to that of electron.

A proton has one unit positive charge whereas electron has one unit negative charge.

Relation between F^∘ and celcius scale:
^∘F = 9/5^∘ C + 32

In our atmosphere , presence of 78 % nitrogen after then presence of oxygen 21 % others 1 %. so the abundant non metal is oxygen

The least compressible state of matter is solid form. 

Solids have much more connected bonds or forces between their own atoms. Since their atoms are more tightly packed together, closer to one another, and are stronger bonds than liquids and gases, then they require more energy (more compression) to change the structure of their atoms. 

Chickens raised for eggs are usually calledlayers while chickens raised for meat are often called broilers.

Areolar connective tissue is a versatile tissue found between the skin and muscles, around blood vessels, and in various other locations. It provides support and flexibility.

Herbicide, an agent, usually chemical, for killing or inhibiting the growth of unwanted plants, such as residential or agricultural weeds and invasive species. A great advantage of chemical herbicides over mechanical weed control is the ease of application, which often saves on the cost of labour. Most herbicides are considered nontoxic to animals and humans, but they can cause substantial mortality of nontarget plants and the insects that depend on them, especially when applied aerially.

Answer:

The correct answer is B: Cardiac and smooth muscles are involuntary.

Explanation:

Involuntary muscles are muscles that are not under conscious control, meaning they contract and relax without us having to think about it. The options and their explanations are as follows:

• Option A: Cardiac and skeletal muscles - Skeletal muscles are voluntary muscles that we can control consciously, so this option is incorrect.


• Option B (Correct): Cardiac and smooth muscles - Cardiac muscles are found in the heart and are responsible for pumping blood. Smooth muscles are found in the walls of organs and blood vessels. Both cardiac and smooth muscles are involuntary, so this option is correct.


• Option C: Skeletal and smooth muscles - As stated earlier, skeletal muscles are voluntary, so this option is incorrect.


• Option D: Only smooth muscles - This option is incorrect because cardiac muscles are also involuntary.

Therefore, the correct answer is B: Cardiac and smooth muscles are involuntary.

सही विकल्प '4 वश में कर लेना' है।

Key Points

• भेड़ बना लेना मुहावरे का अर्थ है 'वश में कर लेना'
• वाक्य प्रयोग - श्याम ने राम को अपने वश में कर लिया।

Additional Information

अन्य विकल्प-

• 'घोर विपत्ति आना' - बिजली गिरना।
• 'मन में जगह बना लेना'- मन मोह लेना।
• 'दीवार में चुनना' का सही मुहावरा होता है : 'दीवार तोड़ना' जिसका अर्थ होता है पुरानी दुश्मनी भुलाना।

Important Points

• मुहावरे - सामान्य अर्थ का बोध न कराकर विशेष अथवा विलक्षण अर्थ का बोध कराने वाले पदवंध को ही मुहावरा कहते है।
• मुहावरा अरबी भाषा का शब्द है मुहावरा अपूर्ण वाक्य होता है किन्तु वाक्य में प्रयोग करने से वाक्य का अभिन्न अंग बन जाता है ।
• मुहावरा एक वाक्यांश होता है।

अन्य मुहावरे-

• आग बबूला होना - अत्याधिक क्रोधित होना।
• आगे कुआं पीछे खाई - दोनों ओर संकट।
• आकाश के तारे तोड़ना - असंभव कार्य करना।

सही उत्तर ​बलदायक या सीमाबोधक निपात है।

Key Pointsवह आज तक परीक्षा में सफल नहीं हुआ।- वाक्य के रेखांकित शब्द में बलदायक या सीमाबोधक निपात है।

अन्य विकल्प-

• स्वीकार्य निपात- हाँ, जी, जी हाँ।
• निषेधात्मक निपात- मत
• विस्मयादिबोधक निपात- क्या, काश, काश कि

निपात- किसी भी बात पर अतिरिक्त भार देने के लिए जिन शब्दों का प्रयोग किया जाता है, उसे निपात कहते है। जैसे- तक, मत, क्या, हाँ, भी, केवल, जी, नहीं, न, काश। उदाहरण- कल मै भी आपके साथ चलूँगा।Additional Information

संज्ञा या विशेषण से बनने वाली क्रिया को 'नाम धातु' कहते है। अन्य सभी विकल्प गलत है।

Key Points

Additional Information

विशेष:

सही उत्तर: पश्चिमी इतिहास बोध के प्रभाव में अपनी परंपरा से कट जाने के कारण है।
नायपाल ने भारतीय संस्कृति को 'घायल संस्कृति' इसलिए कहा क्योंकि पश्चिमी इतिहास-बोध के प्रभाव ने उसे अपनी परंपरा और अतीत से अलग कर दिया था।
Key Points
अन्य विकल्पों का विश्लेषण:

• पराजय बोध के कारण - यह स्पष्ट रूप से उल्लेखित नहीं किया गया है कि पराजय बोध ने संस्कृति को घायल होने का कारण बनाया है।
• मिथकों और विश्वासों की अवहेलना के कारण - मिथकों और विश्वासों की अवहेलना संस्कृति को क्षति पहुंचा सकती है, लेकिन मुख्य कारण पश्चिमी इतिहास-बोध का प्रभाव है।
• उपर्युक्त में से कोई नहीं - प्रदत्त विकल्प द्वारा सही उत्तर प्रदान किया गया है, इसलिए यह विकल्प गलत है।