The figure represents two snaps of a travelling wave on a string of mass per unit length `mu=0.25 kg//m`. The first snap is taken at t=0 and the second is taken at `t=0.05 s`.

Determine the speed of the wave. Determine the frequency of the wave.

Options

A. 20/3 m/s
B. 10/3 m/s
C. 20m/s
D. 10m/s

Answer

B