# NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1624 - 1631 of 2028

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## Question 1624

### Question

MCQ▾

An object is travelling with speed of sound. Therefore, value of its speed is around:

### Choices

Choice (4)Response

a.

b.

c.

d.

All a., b. and c. are correct

## Question 1625

### Question

MCQ▾

Sound cannot propagate through:

### Choices

Choice (4)Response

a.

Gas

b.

Solid

c.

Water

d.

Vacuum

## Question 1626

### Question

MCQ▾

Due to which property (ies) , a human can identified the quality of sound produced by a source?

### Choices

Choice (4)Response

a.

Loudness

b.

Frequency

c.

Amplitude

d.

All a., b. and c. are correct

## Question 1627

### Question

MCQ▾

If frequency of a vibrating object is , then its time period is:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 1628

### Question

MCQ▾

Which of the following force is contact force?

### Choices

Choice (4)Response

a.

Magnetic force

b.

Electrostatic force

c.

Friction force

d.

Gravitational force

## Question 1629

### Question

MCQ▾

The speed of sound in kerosene, aluminum and air can correctly compared as:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 1630

MCQ▾

### Choices

Choice (4)Response

a.

oscillation per

b.

oscillation in

c.

oscillation per

d.

oscillation per

## Question 1631

### Question

MCQ▾

A force is distributed uniformly on one surface of a cube of edge . The pressure on this surface is:

### Choices

Choice (4)Response

a.

b.

c.

d.

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