Q. In a Young’s double slit experiment, the source illuminating the slits is changed from blue to violet. The width of the fringes
A) Increases
B) Decreases
C) Becomes unequal
D) Remains constant
Explanation
(b) $\beta \propto \lambda$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.