Two sources of light `0.85` mm apart are illuminated by a light of wavelenths,
Channel: Doubtnut
Date: 14/06/2020

Two sources of light `0.85` mm apart are illuminated by a light of wavelenths, 6000Å . The phase difference between the two waves intefering on screen,.1.7 m away from the slite at a point 2.5 mm from the central bright band is nearly.