In Young's double slit experiment, the two slits acts as coherent sources of equal amplitude 
and wavelength 
. In another experiment with the same set up the two slits are sources of equal amplitude 
and wavelength 
but are incoherent. The ratio of the intensity of light at the mid-point of the screen in the first case to that in the second case is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Intensity in the first case, 
where, 
intensity due to each source.
Intensity in second case, 
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