# AIIMS (All India Institute of Medical Sciences) Physics: Questions 405 - 410 of 500

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## Question number: 405

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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: 406

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MCQ▾

### Question

It the radius of the earth is reduced by 2 %, keeping the mass unchanged, what will be the change in acceleration due to gravity at the surface of the earth?

### Choices

Choice (4)Response

a.

4

b.

8

c.

2

d.

6

## Question number: 407

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MCQ▾

### Question

The reactance of an inductance of 0.07 H is . Than the frequency of a. c is –

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 408

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MCQ▾

### Question

A gun of weight of 15 kg fires a shot of 0.5 g with a velocity . Velocity of recoil gun is: -

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 409

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MCQ▾

### Question

A particle executes simple harmonic motion with an angular velocity and maximum acceleration of . and respectively. Amplitude of the oscillation is –

### Choices

Choice (4)Response

a.

0.8 m

b.

1.0m

c.

0.9 m

d.

0.5 m

## Question number: 410

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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.

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