Two sound waves having a phase difference of `60^(@)` have path difference of :

Options

A. 2 `lambda`
B. `lambda`/2
C. `lambda`/3
D. `lambda`/6

Answer

D

Explanation

We know that x = `(lambda)/(2pi ) phi `
here `phi = 60^(@) = pi//3`
`therefore x = (lambda)/(2pi) xx (pi)/(3) = (lambda)/(6)`.
correct choice is (d).