Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 113 - 118 of 219

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Question 113

Physics
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Question

MCQ▾

The force of friction depends upon:

Choices

Choice (4)Response

a.

Material of objects in contact

b.

Nature of surface of contact

c.

Both a. and b. are correct

d.

None of the above

Question 114

Physics
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Question

MCQ▾

Rainbow occurs due to, which of the following phenomenon?

Choices

Choice (4)Response

a.

Internal Reflection

b.

Refraction

c.

Dispersion

d.

All a. , b. and c. are correct

Question 115

Physics
Edit

Question

MCQ▾

Which of following surface cannot form a clear image?

Choices

Choice (4)Response

a.

Curved

b.

Ideal

c.

Rough

d.

Smooth

Question 116

Edit

Question

MCQ▾

Imitation jewelry is made by:

Choices

Choice (4)Response

a.

Applying a layer of chromium

b.

Applying a layer of silver

c.

Applying a layer of gold

d.

Both b. and c. are correct

Question 117

Edit

Question

MCQ▾

Electrostatic force acts;

Choices

Choice (4)Response

a.

between earth and body

b.

on contact surface of two bodies

c.

between charge particles

d.

between iron and magnet

Question 118

Edit

Question

MCQ▾

Which of the following phenomenon occurs in transformation of water vapor to liquid in form of drops?

Choices

Choice (4)Response

a.

Heat is released

b.

Initially heat released and then absorbed

c.

Heat is absorbed

d.

Initially heat absorbed and then released