In Young,s double slit experimentm, 60 fringes are observed in the central view zone
Channel: Doubtnut
Date: 2020-07-12

In Young,s double slit experimentm, 60 fringes are observed in the central view zone with light of wavelength `4000Å`, The number of fringes that will be observed in the same view zone with the light of wavelength `6000Å`, is