# Rotational Motion (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 3 - 5 of 14

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## Question number: 3

» Rotational Motion » Concepts of Rotational Motion

Appeared in Year: 2011

MCQ▾

### Question

Figure below shows a small mass connected to a string, which is attached to a vertical post. If the ball is released when the string is horizontal as shown, the magnitude of the total acceleration (including radial and tangential) of the mass as a function of the angle θ is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 4

» Rotational Motion » Frequency and Period

Appeared in Year: 2014

MCQ▾

### Question

A body moves in a circular orbit of radius R under the action of a central force. Potential due to the central force is given by (k is positive constant). Period of revolution of body is equal to:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 5

» Rotational Motion » Torque

Appeared in Year: 2014

MCQ▾

### Question

A simple pendulum is attached to the block which slides without friction down an inclined plane (ABC) having an angle of inclination α as shown.

While the block is sliding down the pendulum oscillates in such a way that its mean position the direction of the string is –

### Choices

Choice (4) Response

a.

vertically downwards

b.

parallel to the inclined plane AC.

c.

at angle α to the perpendicular to the inclined plane AC.

d.

perpendicular to the inclined plane AC.

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