Q.

The speed of sound in air at STP is 300 m/s. If the air pressure becomes double, the temperature remaining the same, the speed of sound would become

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a

600 m/s

b

300 m/s

c

3002m/s 

d

1200 m/s

answer is D.

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Detailed Solution

v=γRTM

If temperature is constant, speed of sound is also constant.

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