NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 962 - 966 of 2320

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Question number: 962

» Laws of Motion » Laws of Friction

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MCQ▾

Question

A body of mass 400 g slides on a rough horizontal surface. If the frictional force is 3.0 N, the magnitude of the contact force is (g = 10 m/s 2)

Choices

Choice (4)Response

a.

3.0 N

b.

7.0 N

c.

4.0 N

d.

5.0 N

Question number: 963

» Work, Energy and Power » Potential Energy

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MCQ▾

Question

A tennis ball dropped from a height of 6 m rebounds only 2.1 f meter after hitting the ground. What fraction of energy is lost in the impact?

Choices

Choice (4)Response

a.

0.466

b.

1.26

c.

0.65

d.

0.5

Question number: 964

» Laws of Motion » Laws of Friction

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MCQ▾

Question

A block of metal is lying on the floor of a bus. The maximum acceleration which can be given to the bus so that the block may remain at rest, will be –

Choices

Choice (4)Response

a.

μg 2

b.

μ 2 g

c.

μ/g

d.

μg

Question number: 965

» Ray Optics » Power of a Lens

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MCQ▾

Question

The plane surface of a Plano-convex lens is silvered If radius of curved surface is R and refractive index is µ, then the system behaves like a concave mirror whose radius will be,

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 966

» Ray Optics » Total Internal Reflection

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MCQ▾

Question

A glass prism is dipped in water as shown in figure. A light ray is incident normally on the surface AB. It reaches the surface BC after T. I. R

Glass prism dipped in water

Glass Prism Dipped in Water

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

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