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Q.

Is it true that the velocity of sound in air at the given temperature decreases with increase in pressure?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is False.
The velocity of sound in air is the distance travelled by the sound wave in a unit of time, provided the wave is propagating through an elastic medium. The speed of sound in air is dependent on the following factors:
●        The temperature of the air
●        The density of air
●        Air humidity
Therefore, the velocity of sound in air does not change with any change in pressure.
The correct statement would be that the velocity of sound in air at the given temperature doesn’t change with increase in pressure.
 
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