Selina solutions

Selina solutions

Grade 8

Sound | Objective Questions

Question 1

Q1) Write true or false for each statement :

(a) When sound propagates in air, it does not carry energy with it.

(b) In a longitudinal wave, compression and rarefaction are formed.

(c) The distance from one compression to the nearest rarefaction is called wavelength.

(d) The frequency is measured in seconds.

(e) The quality of a sound depends on the amplitude of wave.

(f) The pitch of sound depends on frequency.

(g) Decibel is the unit of a sound.

Solution :

(a) False

(b) True

(c) False

(d) False

(e) False

(f) True

(g) False

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subject-cta

Question 1

Q1) Write true or false for each statement :

(a) When sound propagates in air, it does not carry energy with it.

(b) In a longitudinal wave, compression and rarefaction are formed.

(c) The distance from one compression to the nearest rarefaction is called wavelength.

(d) The frequency is measured in seconds.

(e) The quality of a sound depends on the amplitude of wave.

(f) The pitch of sound depends on frequency.

(g) Decibel is the unit of a sound.

Solution :

(a) False

(b) True

(c) False

(d) False

(e) False

(f) True

(g) False

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subject-cta
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