The maximum particle velocity in a progressive wave is 4 times of the wave, velocity. If the amplitude of the particle is 'A', then the proagation constant is

Options

A. 4/A
B. A/4
C. 2/A
D. A/2

Answer

A

Explanation

`v_("Pmax") = 4v`
`A omega = 4v`
`A xx 2pi n = 4 n lamda`
`A xx (2pi)/(lamda) = 4`
`A xx k = 4`
`k = (4)/(A)`