# Work, Energy and Power-Conservation of Mechanical Energy (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 1 - 3 of 6

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## Question number: 1

» Work, Energy and Power » Conservation of Mechanical Energy

Appeared in Year: 2010

MCQ▾

### Question

Two identical particles of mass ‘m’ and charge q are shot at each other from a very great distance with an initial speed v. The distance of closest approach of these charges is –

### Choices

Choice (4) Response

a.

0

b.

c.

d.

## Question number: 2

» Work, Energy and Power » Conservation of Mechanical Energy

Appeared in Year: 2013

MCQ▾

### Question

A point particle of mass 0.5 kg is moving along the x-axis under a force described by the potential energy V shown below. It is projected towards the right from the origin with a speed v. What is the minimum value of v for which the particle will escape infinitely far away from the origin?

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

## Question number: 3

» Work, Energy and Power » Conservation of Mechanical Energy

Appeared in Year: 2014

MCQ▾

### Question

A solid cylinder P rolls without slipping from rest down an inclined plane attaining a speed at the bottom. Another smooth solid cylinder Q of same mass and dimensions slides without friction from rest down the inclined plane attaining a speed at the bottom. The ratio of the speeds is –

### Choices

Choice (4) Response

a.

b.

c.

d.

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