Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 141 - 145 of 219

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Question number: 141

» Physics » Some Natural Phenomena

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MCQ▾

Question

A charged body is connected by one end of another electrical conducting body rod. Another end of this conducting rod is connected to the ground, and charges of first body transfer through this conducting rod to the earth. This process is called:

Choices

Choice (4)Response

a.

Conduction

b.

Earthing

c.

Induction

d.

None of the above

Question number: 142

» Physics » Some Natural Phenomena

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MCQ▾

Question

Which of the following is used as a major material to make a lightning rod?

Choices

Choice (4)Response

a.

Plastic

b.

Copper

c.

Carbon

d.

Wood

Question number: 143

» 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: 144

» 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: 145

» 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

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