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Question
How does the angular separation between fringes in single-slit diffraction experiment change when the distance of separation between the slit screens is doubled?
Solution
We know angular separation is given as
`theta = beta/D = (Dlambda)/(d/D) =lambda/d`
Since θ is independent of D, the distance of separation between the screen and the slit so when D is doubled, angular separation would remain same.
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