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A stationary sound sound 's' of frequen...

A stationary sound sound 's' of frequency 334 Hz and a stationary ovserver 'O' are placed near a reflecting suface moving away from the source with velocity 2 m/s as shown in the figure. If the velocity of the sound waves is air is v= 330 m/s the apparent frequency of the echo is

A

332 Hz

B

326 Hz

C

334 Hz

D

330 Hz

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The correct Answer is:
D
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