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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 reaccedes the observer with the same speed ? Given , that `v_(s)lt lt v `(v= speed pf sound in air )

A

`10.5%`

B

`9.5%`

C

`4.5%`

D

`1.5%`

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The correct Answer is:
B
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