The parallel beams of monochromatic light of wavelength 
passes through a long slit with width 
. The angular divergence in which most of the light is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Most of the light is diffracted between the two first order minima. These minima occur at angles given by 
.
(angle is very small)
The angular divergence, 
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