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A whistle giving out 450 H(Z) approaches...

A whistle giving out `450 H_(Z)` approaches a stationary observer at a speed of `33 m//s`. The frequency heard the observer (in `H_(Z)`) is (speed of sound `= 330 m//s`)

A

409

B

429

C

517

D

500

Text Solution

Verified by Experts

The correct Answer is:
D
`f=f_(o)((v)/(v_(obs)))`
`=450((330)/(330-33))=500Hz`
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ALLEN-WAVES AND OSCILLATIONS-Part-1(Exercise-01)
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