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The frequency changes by 10 % as the sou...

The frequency changes by 10 % as the source approaches a stationary observer with constant speed `v_(s)`. What would be the percentage change in frequency as the sources recedes the observer with the same speed ? Given , that `v_(s)lt lt v `(v= speed pf sound in air )

A

14.3%

B

20%

C

16.7%

D

10%

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The correct Answer is:
D
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