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A stretched rope having linear mass den...

A stretched rope having linear mass density `5xx10^(-2)kg//m` is under a tension of `80 N`. the power that has to be supoplied to the rope to generate harmonic waves at a frequency of `60 Hz` and an amplitude of `(2sqrt2)/(15pi)m` is

A

215 W

B

251 w

C

512 w

D

521 w

Text Solution

Verified by Experts

The correct Answer is:
c
`P=(1)/(2)muomega^(2)A^(2)v` when `v=sqrt((T)/(mu))`
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