MHT CET Physics question
In Young's experiment, fringes are obtained on a screen placed at a distance of 75 cm from the slits. When the separation between two narrow slits is doubled, then the fringe width is decreased. In order to obtain the initial fringe width, the screen should be moved through [MHT-CET 2021]
Answer: (C)
Solution
; doubling halves , so must be doubled to 150 cm, i.e. the screen is moved 75
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