NCERT Class 8 Science-Sound[Sound] [NCERT Based General Studies (GS)]: Questions 1 - 4 of 4

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Question 1

Question MCQ▾

Sound is defined as:

Choices

Choice (4)Response

a.

Form of energy

b.

Sound can be created or transmitted only in medium

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

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Question 2

Question MCQ▾

Some crude musical instruments make soothing musical sound when struck with the help of a stick such as:

Choices

Choice (4)Response

a.

Ghattam

b.

Munjira

c.

Kartal

d.

All a., b. and c. are correct

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Question 3

Question MCQ▾

Sound is produced when:

Choices

Choice (4)Response

a.

To and fro motion of an object

b.

Any object that vibrates mechanically produces sound

c.

Intensity of sound

d.

The number of vibrations per second as perceived by a listener

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Question 4

Question MCQ▾

Audible range of frequency is:

Choices

Choice (4)Response

a.

Above 20,000Hz

b.

Below 20 Hz

c.

Above 20 KHz

d.

20 Hz to 20,000Hz

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