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A siren emitting a sound of frequency 80...

A siren emitting a sound of frequency 800 Hz moves away from an observer towards a cliff at a speed of `15ms^-1`. Then the frequency of sound that the observer hears in the echo reflected from the cliff is (Take velocity of sound in air `=330ms^-1`)

A

838 Hz

B

885 Hz

C

765 Hz

D

800 Hz

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The correct Answer is:
D
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TARGET PUBLICATION-WAVE MOTION -MCQ 7.1
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