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Velocity of sound wave in air is 330 m/s...

Velocity of sound wave in air is 330 m/s for a particular sound in air.A path difference of 40 cm is equivalent to a phase difference of 1.6 `pi.` The frewuency of this wave is

A

165 Hz

B

150 Hz

C

660 Hz

D

330 Hz

Text Solution

Verified by Experts

The correct Answer is:
C
Phase difference `(Deltaphi)=(2pi)/(lambda)xx` Path difference
`implies 1.6pi=(2pi)/(lambda)xx40implieslambda=50cm=0.5m`
Velocity `(v)=flambdaimpliesf=(330)/(0.5)=660Hz`.
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