Path difference between two waves superposing at one point is 132, so interference at that point will be ...... and ...... order.

Options

A. constructive `13^(th)`
B. destructive `13^(th)`
C. constructive `7^(th)`
D. destructive `7^(th)`

Answer

A

Explanation

`("path difference.)/("wavelength")=(13 lambda)/(lambda)`= Bright fringes of the `13^(th)` orderis obtained.
`:.` So at this point constructive interference of `13^(th)` order will be formed.