In Young's double slit experiment, while using a source of light of wavelength 4500 `Å` , the
Channel: Doubtnut
Date: 02/11/2021

In Young's double slit experiment, while using a source of light of wavelength 4500 `Å` , the fringe width obtained is 0.4 cm. If the distance between the slits and the screen is reduced to half , calculate the new fringe width.