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A person carrying a whistle emitting con...

A person carrying a whistle emitting continuously a note of `272 Hz` is runnig towards a reflecting surface with a speed of `18km//h`. The speed of sound in air is `345ms^(-1)` The number of beats heard by him is

A

`4`

B

`6`

C

`8`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
C
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