Question

The requirement for the central maximum of the diffraction envelope of the double slit diffraction pattern to exactly contain seven interference fringes, if slit width is ‘a’ and opaque spacing between the slits is ‘b’, is
1) b= 3a
2) b= 2a
3) b = a/2
4) b =a/4

Answer 1

Answer:

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Explanation:

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