Laser light of wavelength 630 mm incident on a pair of slits produces as interference pattern in
Channel: Doubtnut
Date: 09/02/2020

Laser light of wavelength 630 mm incident on a pair of slits produces as interference pattern in which the bright fringes are separated by 8.1 mm. A second light produces an interference pattern in which the fringes are separated by 7.2 mm. Calculate the wavelength of the second light.