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Assertion: The change in air pressure ef...

Assertion: The change in air pressure effects the speed of sound.
Reason: The speed of sound in gases is proportional to the square of pressure.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
Speed of sound is independent of pressure because `v=sqrt((gammaP)/(rho))`. At constant temperature, if P changes then `rho` also changes in such a way that the ratio `(P)/(rho)` remains constant hence there is no effect of the pressure change on the speed of sound.
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