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A disc of radius R is rotating uniformly...

A disc of radius R is rotating uniformly with angular frequency . A source of sound is fixed to the rim of the disc. The ratio of maximum to minimum frequency heard by a stationary observer, far away from the disc and in the plane of the disc is: (v = speed of sound)

A

`((V)/(V-Romega))`

B

`((V)/(V+Romega))`

C

`((V-Romega)/(V+Romega))`

D

`((V+Romega)/(V-Romega))`

Text Solution

Verified by Experts

The correct Answer is:
D
`f_("min")=(V)/(V+Romega) f_(0) and f_("max")=(V)/(V-Romega)f_(0)`
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