Two coherent sources S 1 and S 2 are separated by a distance four times the wavelength λ λ of the source. The sources lie along y axis whereas a detector moves along + x axis. Leaving the origin and far off points the number of points where maxima are observed is
Text Solution
Verified by ExpertsThe correct answer is:
B
From 
Here 
is the path difference 
for maximum intensity.
or 
Then 
.
Number of points for maxima becomes 3.
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