Wave OpticsHard
Question
Two point source separated by d = 5μm emit light of wavelength λ = 2μm in phase. A circular wire of radius 20μm is placed around the source as shown figure
Options
A.Points A and B are dark and points C and D are bright.
B.Points A and B are bright and points C and D are dark.
C.Points A and C are dark and points B and D are bright.
D.Points A and C are bright and points B and D are dark.
Solution
Path difference for points A & C is O so constructive interference take place.
Path difference for B & D = 5 μm =
So distructive interference take place.
Path difference for B & D = 5 μm =
So distructive interference take place.
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