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CUET UG 2023 — Physics Optics
hard
mcq
2023
Official previous-year question
Verified 30 May 2026.
Question
In Young's double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is immersed in water of refractive index 4/3, the new fringe width will be:
Options
- A
- B
- C
- D
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