In Young’s double slit experiment, the fringes are displaced by a distance x when a glass plate of one refractive index 1.5 is introduced in the path of one of the beams. When this plate in replaced by another plate of the same thickness, the shift of fringes is 
The refractive index of the second plate is
Text Solution
Verified by ExpertsThe correct answer is:
B
Fringe shift is given by 
For first plate, 
For second plate 
⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ 
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