MHT CET 2022 Physics question
In Young's double slit experiment we get 15 fringes per cm on the screen using light of wavelength 5600 . For the same setting how many fringes per cm will be obtained with the light of wavelength 7000 ?
Answer: (C)
Solution
The fringe width is , and the number of fringes per cm is for the same and . So , giving $ =
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