A screen is placed 50cm from a single slit, which is illuminated with 6000Å light.
Channel: Doubtnut
Date: 05/07/2020

A screen is placed 50cm from a single slit, which is illuminated with 6000Å light. If distance between the first and third minima in the diffraction pattern is 3.0 mm, what is the width of the slit?