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In a Young's double slit interference ex...

In a Young's double slit interference experiment the fringe pattern is observed on a screen placed at a distance D from the slits. The slits are separated by a distance d and are illuminated by monochromatic light of wavelength `lambda`. Find the distance from the central point where the intensity falls to (a) half the maximum, (b) one fourth of the maximum.

A

`(D lambda)/(4d), (D lambda)/(3d)`

B

`(D lambda)/(d), (D lambda)/(2d)`

C

`(D lambda)/(2d), (D lambda)/(3d)`

D

`(D lambda)/(4d), (D lambda)/(d)`

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The correct Answer is:
A
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