# Classical Mechanics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 21 - 24 of 69

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## Question number: 21

» Classical Mechanics » Periodic Motion » Normal Modes

Appeared in Year: 2014

MCQ▾

### Question

A particle of mass m is moving in the potential where are positive constants. The frequency of small oscillation about a point of stable equilibrium is – (December)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 22

» Classical Mechanics » Special Theory of Relativity » Mass-Energy Equivalence

Appeared in Year: 2014

MCQ▾

### Question

According to the special theory of relativity, the speed of a free particle of free particle of mass m and total energy E is – (December)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 23

» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics

Appeared in Year: 2012

MCQ▾

### Question

A horizontal circular platform rotates with a constant angular velocity directed vertically upwards. A person seated at the centre shoots a bullet of mass ‘m’ horizontally with speed ‘v’. The acceleration of the bullet, in the reference frame of the shooter, is – (June)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 24

» Classical Mechanics » Noether's Theorem

Appeared in Year: 2012

MCQ▾

### Question

A binary star system consists of two stars S1 and S2, with masses m and 2m respectively separated by a distance r. If both S1 and S2 individually follow circular orbits around the centre of mass with instantaneous speed and respectively, the speed ratio is – (December)

### Choices

Choice (4) Response

a.

0

b.

2

c.

1

d.

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