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A parallel beam of monochromatic light of wavelength  is incident normally on a single narrow slit of width . The light is focused by a convex lens on a screen placed on the focal plane. The first minimum will be formed for the angle of diffraction equal to

a)

b)

c)

d)



Question ID - 150116 | SaraNextGen Top Answer

A parallel beam of monochromatic light of wavelength  is incident normally on a single narrow slit of width . The light is focused by a convex lens on a screen placed on the focal plane. The first minimum will be formed for the angle of diffraction equal to

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

For the first minima

127 votes


127