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A source of sound S of frequency 500 Hz ...

A source of sound `S` of frequency 500 Hz situated between a stationary observer `O` and wall `W`, moves towards the wall with a speed of `2m//s`. If the velocity of sound is `332m//s`. Then the number of beats per second heard by the observer is (approximately)

A

`8`

B

`6`

C

`4`

D

`2`

Text Solution

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The correct Answer is:
B
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