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Young's double slit Experiment

Question

Maximum intensity in YDSE is I0. Find the intensity at a point on the screen where phase difference between the two interfering beams is π3

 

Easy
Solution

We have intensity at any point on the screen 

I=Imaxcos2ϕ2 

where ϕ is phase difference between two interfering beams

Here Imax=I0 and ϕ=π3

I=I0cos2π6=34I0

 

 



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