In the case of light waves from two coherent sources 
and 
there will be constructive interference at an arbitrary point P, the path difference 
is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
: Constructive interference occurs when the path difference 
is an integral multiple of 
Or 
Where ( tgk¡ ) n = 0,1,2,3…..
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