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M(1) and M(2) are two plane mirrors whic...

`M_(1)` and `M_(2)` are two plane mirrors which are kept parallel to each other as shown. There is a point `'O'` on perpendicular screen just infront of `'S'`. What should be the wavelength of light coming from monchromatic source `'S'`. So that a maxima is formed at `'O'` due to interference of reflected light from both the mirrors. [Consider only `1st` reflection]. `[D gt gt d, d gt gt lambda]`

A

`(3d^(2))/(D)`

B

`(3d^(2))/(2D)`

C

`(d^(2))/(D)`

D

`(2d^(2))/(D)`

Text Solution

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The correct Answer is:
B
N//a
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