A beam of light consisting of two wavelength `800 nm and 600 nm` is used to obtain the
Channel: Doubtnut
Date: 02/08/2020

A beam of light consisting of two wavelength `800 nm and 600 nm` is used to obtain the interference fringes in YDSE on a screen held `1.4 m` away. If the two slits are separated by `0.28 mm`, calculate the least distance from thecentral bright maximum, where the bright fringes of the two waveength coincide.