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An observer moves towards a stationary source of sound of frequency n . The apparent frequency heard by him is 2 n . If the velocity of sound in air is 332 m/sec, then the velocity of the observer is

A

166 m/sec

B

664 m/sec

C

332 m/sec

D

1328 m/sec

Text Solution

Verified by Experts

The correct Answer is:
C
`f.=f((v+v_(o))/(v))implies2n=n((332+v_(o))/(332))=v_(o)=332m//sec`
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