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A man holding a sound source at the top of a tower emitting frequency of sound as `v=1000Hz`. Suddenly it slips from his hand and falls down with `'g'` acceleration. The frequency of sound heard by the man at `t=4sec`. (Velocity of sound `=320m//s`, `g=10m//s^(2)`)

A

`860 Hz`

B

`888Hz`

C

`894.75 Hz`

D

`930 Hz`

Text Solution

Verified by Experts

Use Doppler's effect.
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