# NCERT Class 9 Science-Sound[Propagation of Sound] [NCERT Based General Studies (GS)]: Questions 1 - 6 of 7

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## Question 1

### Question MCQ▾

Sound can travel through medium such as:

### Choices

Choice (4)Response

a.

Gas

b.

Liquid

c.

Solid

d.

All a., b. and c. are correct

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## Question 2

### Question MCQ▾

We describe the sound waves by their:

### Choices

Choice (4)Response

a.

Wavelength

b.

Amplitude

c.

Frequency, time period and wave speed

d.

All a., b. and c. are correct

Edit

## Question 3

### Question MCQ▾

Wave motion is a:

### Choices

Choice (4)Response

a.

Method of propagation of a disturbance

b.

Transfer of disturbance from one particle of medium to next particle

c.

All of the above

d.

None of the above

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## Question 4

### Question MCQ▾

Wave is defined as:

### Choices

Choice (4)Response

a.

The motion of energy through a medium in the form of a wave

b.

Any disturbance that propagates through a medium due to the repeated vibrating motion of medium particles

c.

Which require medium for its propagation

d.

None of the above

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## Question 5

### Question MCQ▾

Speed of the sound depends upon the:

### Choices

Choice (4)Response

a.

Physical state of the medium, elasticity and density of the medium

b.

Frequency or wavelength of sound

c.

Temperature of the medium

d.

All a., b. and c. are correct

Edit

## Question 6

### Question MCQ▾

Why sound of a thunder is heard a little later than the flash of light?

### Choices

Choice (4)Response

a.

Because speed of sound is much less than speed of light

b.

Speed of sound is different in different medium

c.

Speed of sound depends on certain physical properties

d.

None of the above

Edit