Q. In Young’s double slit experiment, if $d,D$ and $\lambda$ represent, the distance between the slits, the distance of the screen from the slits and wavelength of light used respectively, then the band width is inversely proportional to
A) $\lambda$
B) $d$
C) $D$
D) $\lambda^{2}$
Explanation
(b) Fringe width, $\beta = \frac{\lambda D}{d}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.