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Two factories are sounding their sirens ...

Two factories are sounding their sirens at 800 Hz. A man goes from one factory to the other at a speed of 2 m/s. The velocity of sound is 320 m/s. The number of beats heard by the person is 1 s will be

A

10

B

4

C

2

D

8

Text Solution

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The correct Answer is:
A
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