NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1752 - 1757 of 2028

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Question number: 1752

» Physics » Friction

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MCQ▾

Question

Why the surface of the head of a match stick and side of a match box are made rough?

Choices

Choice (4)Response

a.

Increase amount

b.

Decrease amount of heat

c.

Decrease the friction

d.

Increase the friction

Question number: 1753

» Biology » Cell

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MCQ▾

Question

Which of the following is the function of chromosomes?

Choices

Choice (4)Response

a.

Carrying genetic material

b.

Controlling meiosis

c.

Controlling mitosis

d.

Producing gametes

Question number: 1754

» Biology » Food Production and Management

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MCQ▾

Question

Fertility of soil is reduced by:

Choices

Choice (4)Response

a.

Crop rotation

b.

Decaying organic matter

c.

Addition of N2 fixing bacteria

d.

Intensive agriculture

Question number: 1755

» Physics » Light

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MCQ▾

Question

In which of the following phenomena, the brain continues to sense the image, even after the object has been removed?

Choices

Choice (4)Response

a.

Optical error

b.

Persistence of eye

c.

Illusion of eye

d.

All of the above

Question number: 1756

» Physics » Chemical Effects of Electric Current

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MCQ▾

Question

A vessel is connected with electrodes and it filled with a liquid, which allows the electric current flow. Which of the following liquid can be possible in vessel?

Choices

Choice (4)Response

a.

Helium

b.

Salt water

c.

Distilled water

d.

Question does not provide sufficient data or is vague

Question number: 1757

» Physics » Friction

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MCQ▾

Question

Friction is a:

Choices

Choice (4)Response

a.

Scalar

b.

Constant

c.

Vector

d.

Can be scalar or vector

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