# KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics: Questions 152 - 155 of 253

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## Question number: 152

MCQ▾

### Question

In the following circuit, the 3 Ω resistor dissipates power Pi. If the resistor is replaced by 7 Ω, the power dissipated in it is Pf, then

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 153

MCQ▾

### Question

Figure below shows a portion of an electric circuit with the currents in amperes and their directions. The magnitude and direction of the current in the portion AB is

### Choices

Choice (4) Response

a.

1 A from A to B

b.

2A from B to A

c.

3 A from B to A

d.

0A

## Question number: 154

MCQ▾

### Question

Potential energy of a spring when stretched by 8 cm is U. When stretched by 32 cm, its potential energy will be,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 155

MCQ▾

### Question

A thief is running away on a straight road with velocity 3 m/s. A policeman chases him with velocity 3.5 m/s. Initially the thief was 250 m ahead of the policeman. The time taken by policeman to catch the thief is –

### Choices

Choice (4) Response

a.

9 min

b.

7 min 15 sec

c.

7 min 50 sec

d.

8 min 20 sec

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