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Velocity of sound in a gaseous medium is...

Velocity of sound in a gaseous medium is `330 m s^(-1)`. If the pressure is increased by 4 times without change in temperature, the velocity of sound in the gas is

A

`330 ms^(-1)`

B

`660 ms^(-1)`

C

`156 ms^(-1)`

D

`990 ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
At cont. volume
`P prop T`
`therefore V_s prop sqrt(P)`
If pressure becomes 4 times, velocity becomes double.
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