A screen is placed at `50cm` from a single slit, which is illuminated with `600nm` light.
Channel: Doubtnut
Date: 19/01/2020

A screen is placed at `50cm` from a single slit, which is illuminated with `600nm` light. If separation between the first and third minima in the diffraction pattern is `3.0mm`, then width of the slit is: