Find the ratio of the intensity at the center of a bright fringe to the intensity at the point one quarter of the distance between two fringes from the center.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Total intensity at any point is given by
when 
At the centre of a bright fringe,
Distance between two fringes 
, which is proportional to wavelength ( 
)
Now 
corresponds to a phase diff. 
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