A sinusoidal wave is propagating along a stretched string that lies along the x-axis. The displacement of the string as a function of time is graphed in figure for particles at x = 0 and x = 0.09 m. These two points are with in one wave length of each other. The speed of the wave, if the wave is moving in positive x-direction. [Take `sin^(-1)(3/4) = 0.589` (radians)]

Options

A. 3 m/s
B. 3.8 m/s
C. 9.1 m/s
D. 2.2 m/s

Answer

B