Light from two coherent sources of the same amplitude 
and wavelength 
illuminates the screen. The intensity of the central maximum is 
. If the sources were incoherent, the intensity at the same point will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
: For two coherent sources, 
This is given as 
for maximum and zero for minimum. If there are two noncoherent sources, there will be no maximum and minimum intensities. Instead of all the intensity 
at maximum and zero for minimum, it will be just 
.
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