MHT CET Physics question
In a bi-prism experiment, red light of wavelength 6500Å was used. It was then replaced by green light of wavelength 5200Å. The value of n for which green bright band would coincide with red bright band for the same setting is [MHT-CET 2023]
Answer: (C)
Solution
Coincidence needs , so and ; 2, 3 and 5 do not satisfy it. Hence the correct option is (c).