# Work, Energy and Power-Potential Energy (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 1 - 5 of 11

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## Question number: 1

» Work, Energy and Power » Potential Energy

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MCQ▾

### Question

The potential energy between two atoms in a molecule is given by, where a and b are positive constant and x is the distance between the atoms. The atoms is an stable equilibrium, when-

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 2

» Work, Energy and Power » Potential Energy

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MCQ▾

### Question

If g is the acceleration due to gravity on the earth’s surface, the gain in the potential energy of an object of mass m raised from surface of the earth to a height equal to radius R of the earth is - [M = mass of earth]

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 3

» Work, Energy and Power » Potential Energy

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MCQ▾

### Question

A body of mass m moving with a velocity v 1 in the X-direction collides with another body of mass M moving in Y-direction with a velocity v 2. They coalesce into one body during collision. The magnitude and direction of the momentum of the final body, will be-

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 4

» Work, Energy and Power » Potential Energy

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MCQ▾

### Question

A tennis ball dropped from a height of 2 m rebounds only 1.5 f meter after hitting the ground. What fraction of energy is lost in the impact?

### Choices

Choice (4) Response

a.

1/4

b.

1/8

c.

1/2

d.

1/16

## Question number: 5

» Work, Energy and Power » Potential Energy

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MCQ▾

### Question

A tennis ball dropped from a height of 5 m rebounds only 2.5 f meter after hitting the ground. What fraction of energy is lost in the impact?

### Choices

Choice (4) Response

a.

2.45

b.

1.26

c.

0.5

d.

0.466

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