A simple harmonic progressive wave of frequency 100 Hz is travelling along the positive direction of the X axis. What is the propagation constant, if the velocity of the wave is 500 m/s ?

Options

A. `(2pi)/(5)` per metre
B. `(pi)/(5)` per metre
C. `(2pi)/(3)` per metre
D. `(3)/(2pi)` per metre

Answer

A

Explanation

`K = (2pi)/(lamda) = (2pi n)/(n lamda)`
`= (2pi n)/(V) = (2pi xx 100)/(500) = (2pi)/(5)` per metre