Q. A Young’s double slit set up for interference is shifted from air to within water, then the fringe width
A) Becomes infinite
B) Decreases
C) Increases
D) Remain unchanged
Explanation
(b) When a Young’s double slit set up for interference is shifted from air to within water then the fringe width decreases.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.