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A whistle producing sound waves of frequ...

A whistle producing sound waves of frequencies 9500 Hz and above is approaching a stationary person with velocity v meters per sound. The velocity of sound in air is 300 m/s. If person can hear frequencies up to 10000 Hz, the maximum value of v up to which he can hear the whistle is

A

`15sqrt2ms^(-1)`

B

`15 ms^(-1)`

C

`30 ms ^(-1)`

D

none of these

Text Solution

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The correct Answer is:
B
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