A slit of width 0.025 mis placed in front of a lens of focal length 50 cm. The slit is illuminated w
Channel: Doubtnut
Date: 2021-11-08

A slit of width 0.025 mis placed in front of a lens of focal length 50 cm. The slit is illuminated with light of wavelength 5900 Å. Calculate the distance between the centre and first dark band of diffraction pattern obtained on a screen placed at the focal plane of the lens.