The phase difference corresponding to path difference of x is

Options

A. `(2pix)/(lamda)`
B. `(2pilamda)/(x)`
C. `(pix)/(lamda)`
D. `(pilamda)/(x)`

Answer

A

Explanation

When path difference is `lamda` then phase difference is `2pi` When path difference is 1 then phase difference is `(2pi)/(lamda)` when path difference is x then phase difference is `(2pi)/(lamda)x`