Q. In Young’s double slit experiment, the wavelength of the light used is doubled and distance between two slits is half of initial distance, the resultant fringe width becomes
A) $2\ times$
B) $3\ times$
C) $4\ times$
D) $1/2\ times$
Explanation
(c) $\beta \propto \frac{\lambda}{d}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.