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A source of sound is moving with a veloc...

A source of sound is moving with a velocity of ` 50 ms ^(-1)` towards a stationary observer.The observer measures the frequency of sound as 500 Hz.The apparent frequency of sound as heard by the observer when source is moving away from him with the same speed is (Speed of sound at room temperature 350 `ms ^(-1)`

A

400 Hz

B

600 Hz

C

375 Hz

D

175.5 Hz

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The correct Answer is:
C
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