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Two light sources with intensity I(0) ea...

Two light sources with intensity `I_(0)` each interfere in a medium where phase difference between them us `(pi)/2`. Resultant intensity at the point would be.

Text Solution

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`I_R=4l_0 cos^2 phi/2, phi=pi/2`
`=4l_0 cos^2(pi/4)=2l_0`
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