Parallel light of wavelength 6563Å is incident normally on a slit 0.385 mm wide. A lens with a focal length of 50.0 cm located just behind the slit brings the diffraction pattern to focus on a white screen. Find the distance from the centre of the principal maximum to (a) the first minimum and (b) the fifth minimum.
Parallel light of wavelength 6563Å is incident normally on a slit 0.385 mm wide. A lens with a focal length of 50.0 cm located just behind the slit brings the diffraction pattern to focus on a white screen. Find the distance from the centre of the principal maximum to (a) the first minimum and (b) the fifth minimum.