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In a double slit experiment, the separat...

In a double slit experiment, the separation between the slits is d and distance of the screen from slits is D. If the wavelength of light used is `lambda` and I is the intensity of central bright fringe, then intensity at distance from central maximum is

A

`I cos^(2) ((pi^(2) xd)/(lambda D))`

B

`I^(2) sin^(2) ((pi xd)/(2 lambda D))`

C

`1 cos^(2) ((pi xd)/(lambda D))`

D

`I sin^(2) ((pi xd)/(lambda D))`

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