Q. In a Young’s double slit experiment, the separation of the two slits is doubled. To keep the same spacing of fringes, the distance $D$ of the screen from the slits should be made
A) $\frac{D}{2}$
B) $\frac{D}{\sqrt{2}}$
C) $2D$
D) $4D$
Explanation
(c) $\beta = \frac{\lambda D}{d}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.