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Question: Velocity of sound in a gaseous medium is 330 ms<sup>–1</sup>. If the pressure is increased by 4 time...

Velocity of sound in a gaseous medium is 330 ms–1. If the pressure is increased by 4 times without change in volume, the velocity of sound in the gas is –

A

330 ms–1

B

660 ms–1

C

156 ms–1

D

990 ms–1

Answer

660 ms–1

Explanation

Solution

At cont. volume

P µ T

\ Vs µP\sqrt{P}

if pressure becomes 4 times, velocity becomes double.