In the case of light waves from two coherent sources 
and 
, there will be constructive interference at an arbitrary point 
, if the path difference, 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
The path difference 
is a whole number of wavelength, for the interference at an arbitrary point 
.
So, 
(for maximum intensity)
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