Q.15.22 (a) A travelling harmonic wave on a string is described by
(a) what are the displacement and velocity of oscillation of a point at , and ? Is this velocity equal to the velocity of wave propagation?
The displacement of oscillation of a point at x = 1 cm and t = 1 s is
The general expression for the velocity of oscillation is
The velocity of propagation of the wave is
The velocity of oscillation of point at x = 1 cm and t = 1 cm is not equal to the propagation of the wave.