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Questions  

The intensity of central fringe in the interference pattern produced by two identical slits is I . When one of the slits is closed then the intensity at the same points is I0. The relation between I and I0 is

a
I = 4I0
b
I = 2I0
c
I = I0
d
I = I0/2

detailed solution

Correct option is A

If intensity due to one slit is I0, then central maximum is I = 4I0

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