MHT CET 2023 Physics question
In Young's double slit experiment when a glass plate of refractive index 1.44 is introduced in the path of one of the interfering beams, the fringes are displaced by a distance 'y'. If this plate is replaced by another plate of same thickness but of refractive index 1.66, the fringes will be displaced by a distance
Answer: (A)
Solution
Introducing a plate of thickness and index shifts the fringe pattern by , so for the same , , the shift is proportional to . For : .
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