A parallel beam of monochromatic light of wavelength 
is incident normally on a single narrow slit of width 0.001 mm. The light is focused by a convex lens on a screen placed on the focal plane. The first minima will be formed for the angle of diffraction equal to which of the following?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
For the first minima, 
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