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MHT CET 2024 (9 May, Shift 2) · YDSE: Fringe Width & Fringe Positions

YDSE: Fringe Width & Fringe Positions question from MHT CET 2024 (9 May, Shift 2)

Q28MHT CET 2024 · 9 MAY · SHIFT 2Medium

YDSE: Fringe Width & Fringe Positions

The fringe width in an interference pattern is ' X '. The distance between the sixth dark fringe from one side of central bright band to the fourth bright fringe on other side is

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Answer: (d)

6th dark fringe on one side: $(6 - 0.5)X = 5.5X$ from the centre.
4th bright fringe on the other side: $4X$ from the centre.
Total distance $= 5.5X + 4X = 9.5X$
So the answer is (d) $9.5X$ .

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