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Grade 12Wave Optics

The distance between the two slits in a young double slit experiment is d and the distance of the screen from the plane of the slit is b,P is a point on the screen directly in front of one of the slits the path difference between the waves arriving between at P from the two slits is

Profile image of Vishnu
6 Years agoGrade 12
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1 Answer

Profile image of Kushagra
6 Years ago
Let, y=vertical distance on the screen
      
   y/b=(path difference)/d
   y=d/2 (as the P is in front of one of the slits)
   so,
       path difference=d2/2b

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