A certain transverse sinusoidal wave of wavelength 20 cm is moving in the positive x direction. The transverse velocity of the particle at x=0 as a function of time is shown. The amplitude of the motion is:

Options

A. `(5)/(pi)`
B. `(pi)/(2)`
C. `(10)/(pi)`
D. `2pi cm`

Answer

C

Explanation

We use maximum particle velocity
`v_(max) = Aomega = 5 cm//s, T = 4s`
`omega = (2pi)/(4) = (pi)/(2)`
`A = (5)/(pi //2) = (10)/(pi) cm`.