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Two identical coherent sources produce a...

Two identical coherent sources produce a zero order bright fringe on a screen. If `beta` is the band width, the minimum distance between two points on either side of the bright where the intensity is half that of maximum intensity is

A

b/2

B

b/4

C

b/3

D

b/6

Text Solution

Verified by Experts

The correct Answer is:
B
` I = I_(0) cos^(2) ((theta)/(2))m d tan theta = Delta x`
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