# NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1390 - 1395 of 2000

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## Question number: 1390

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MCQ▾

### Question

If a motor pumps out water from a well , then the quantity of water pumped out per second is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1391

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MCQ▾

### Question

A car of mass travelling hits a concrete wall and comes to a stop in . The magnitude of average force acting on the car to stop by wall:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1392

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MCQ▾

### Question

The length of the pendulum for which the time period is 1.2 second is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1393

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### Question

What is the mass of one atom of silver?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1394

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### Question

If that is on the earth is , then the weight of a body on moon is about:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1395

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MCQ▾

### Question

An astronaut on a planet measures the acceleration due to gravity to be . He knows that the radius of this planet is about times that of the earth. The ratio of the mass of earth to mass of this planet is:

(The acceleration due to gravity on the earth’s surface is )

### Choices

Choice (4) Response

a.

85

b.

100

c.

60

d.

72

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