Q. In Young's double slit experiment, the fringe width increases when:

  • (A) Wavelength decreases
  • (B) Distance between slits increases
  • (C) Distance between screen and slits increases
  • (D) Both wavelength and screen distance decrease
✅ Correct Answer: (C) Distance between screen and slits increases
Explanation: Fringe width β = λD/d. It increases with increasing screen distance D.

Published by Jyoti ⭐ 1.79K Points at 15-Jun-2026 06:05 am in Physics

Explanation by: Jyoti
Fringe width β = λD/d. It increases with increasing screen distance D.

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