# Rotational Motion (AIIMS (All India Institute of Medical Sciences) Physics): Questions 10 - 14 of 16

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## Question number: 10

» Rotational Motion » Concepts of Rotational Motion

MCQ▾

### Question

A stone of mass 5 kg is attached to a string long and is whirled in a horizontal circle. The maximum tension the string can withstand is 20 N. What maximum velocity can be given to the stone without breaking the string?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 11

» Rotational Motion » Radius of Gyration

MCQ▾

### Question

The angular velocity of a body changes from to without applying torque but by changing moment of inertia. The ratio of initial radius of gyration to the final radius of gyration is –

### Choices

Choice (4) Response

a.

b.

c.

d.

2

## Question number: 12

» Rotational Motion » Rigid Body Rotation Equations of Rotational Motion

MCQ▾

### Question

A rope is wound around a hollow cylinder of and radius. If the rope is pulled with a force , the angular acceleration of cylinder and the linear acceleration of the rope are respectively –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 13

» Rotational Motion » Concepts of Rotational Motion

MCQ▾

### Question

A stone tied to the end of 15 cm long string is whirled in a horizontal circle. If the centripetal acceleration is , its angular speed in is –

### Choices

Choice (4) Response

a.

b.

8

c.

9

d.

15

## Question number: 14

» Rotational Motion » Conservation of Angular Momentum

Appeared in Year: 2005

MCQ▾

### Question

Two bodies have their moments of inertia and respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momentum will be in the ratio – [AIPMT]

### Choices

Choice (4) Response

a.

b.

c.

d.