# KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics: Questions 240 - 244 of 253

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## Question number: 240

MCQ▾

### Question

Potential energy of a spring when stretched by 5 cm is U. When stretched by 15 cm, its potential energy will be,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 241

MCQ▾

### Question

N identical water drops, carrying equal charge q and having the same potential V, merge together. The energy of the new drop is given as,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 242

MCQ▾

### Question

A horse pulse a wagon with a force of 720 N at an angle of 600 with the horizontal at a speed of 15 km h-1. The power of the horse is,

### Choices

Choice (4) Response

a.

1000 W

b.

2000 W

c.

500 W

d.

1500 W

## Question number: 243

Appeared in Year: 2016

MCQ▾

### Question

The length and width of a rectangular room are measured to be and , respectively. The area of the floor is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 244

Appeared in Year: 2016

MCQ▾

### Question

In an experiment, setup A consists of two parallel wires which carry currents in opposite directions as shown in the figure. A second setup B is identical to setup A, except that there is a metal plate between the wires.

Let and be the magnitude of the force between the two wires in setup and setup B, respectively.

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page