Light of wavelength `2475 �` is incident on barium. Photo
Channel: Doubtnut
Date: 2020-01-19

Light of wavelength `2475 �` is incident on barium. Photoelectrons emitted describe a circle of radius `100 cm` by a magnetic field of flux density `(1)/(sqrt(17)) xx 10^(-5) Tesla`. Work function of the barium is (Given `(e )/(m) = 1.7 xx 10^(11)`)