NEET (NTA-National Eligibility cum Medical Entrance Test) Physics: Questions 960 - 965 of 2142

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Question number: 960

» Kinematics » Uniformly Accelerated Motion

MCQ▾

Question

An automobile of mass m accelerates from rest. If the engine supplies a constant power P, the position (s) at time (t) is given by –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 961

» Laws of Motion » Laws of Friction

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.

5.0 N

b.

3.0 N

c.

4.0 N

d.

7.0 N

Question number: 962

» Work, Energy and Power » Potential Energy

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.

0.65

b.

0.5

c.

0.466

d.

1.26

Question number: 963

» Laws of Motion » Laws of Friction

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.

μ/g

b.

μ 2 g

c.

μg

d.

μg 2

Question number: 964

» Ray Optics » Power of a Lens

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.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 965

» Ray Optics » Total Internal Reflection

MCQ▾

Question

A glass prism Equation is dipped in water Equation 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

A glass prism is dipped in water. A light ray is incident normally on the surface AB and reaches the surface BC after total internal reflection.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

All of the above

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