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A whistle giving out 450 HZ approaches a...

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

A

409

B

429

C

517

D

500

Text Solution

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The correct Answer is:
D
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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 )

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