Question

In a wave, the path difference corresponding to a phase difference of `phi` is
A. (a) `(pi)/(2lambda)phi`
B. (b) `(pi)/(2)phi`
C. (c) `(lambda)/(2pi)phi`
D. (d) `lambda/piphi`

Answer 1

Correct Answer - C
Phase difference of `2pi` corresponds to path difference of `lambda`. So, unit phase difference corresponds to `(lambda)/(2pi)`. Clearly, the phase difference `phi` corresponds to a path difference of `(lambda)/(2pi)phi`