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Question

The speed of sound in air is not affected by change in :
(a) temperature
(b) moisture
(c) pressure
(d) density

Propagation of Sound Waves Class 9 ICSE

March 28, 2024

Answer

(c) pressure

Reason — The speed of sound in a gas is independent of pressure. Hence, there is no effect on sound when the pressure of air is changed.

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