Question

For the wave $y=5sin30\pi [t-(x/240\left)\right]$ is in seconds. Find the velocity of the wave(in cm/s).

Answer 1

For wave $y=Asin[\omega t-kx]$,

Velocity is given as $\lambda \nu =\frac{2\pi }{k}\times \frac{\omega }{2\pi }$

$=\frac{\omega }{k}=240cm/s$