It is understood that a pulse is regarded as a wave consisting of a single disturbance that moves through the medium with a constant amplitude. (a) Use the concept of movement of a pulse to deduce that the wave function for a simple harmonic wave on a string reduces to sinusoidal wave y(x, t) = Asin(kx wt+), by allowing an initial phase shift p. (b) Hence, from (a) deduce that the linear wave equation is a²y(x,t) 10² y(x,t) -7/22 Əx² Ət²

It is understood that a pulse is regarded as a wave consisting of a single disturbance that moves through the medium with a constant amplitude. (a) Use the concept of movement of a pulse to deduce that the wave function for a simple harmonic wave on a string reduces to sinusoidal wave y(x, t) = Asin(kx wt+), by allowing an initial phase shift p. (b) Hence, from (a) deduce that the linear wave equation is a²y(x,t) 10² y(x,t) -7/22 Əx² Ət²