3 40 When a red light of wavelength 6500 A is incident on a

Last updated: 6/13/2023

3 40 When a red light of wavelength 6500 A is incident on a slit in a single slit diffraction experiment and first minima for red light is at 30 then the slit width is 1 5 2 x 10 m 3 1 3 x 10 m 2 2 6 x 10 m 4 1 x 10 m