A transverse sinusoidal wave is generted at one end of long, horizontal string by a bar that moves up and down through a distance of `1.00 cm`. The motion is continuous and is repreated regularly `120` times per second. The string has linear density `90 gm//m` and is kept under a tension of `900 N`. Find :
What is the transverse displacement `y`(in `cm`) when the minimum power transfer occurs
[Leave the answer in terms of `pi` wherever it occurs]

Options

A. `0`
B. `(1)/(2)`
C. `(1)/(4)`
D. `1`

Answer

B