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 point is I0. The relation between I and I0 is
A
I=4I0
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B
I=2I0
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C
I=I0
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D
I=I02
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Solution
The correct option is AI=4I0 Iincohemt=I1+I2=2I0 Icoherent=4I0