Photo electrons are liberated by ultraviolet light of wavelength `3000 �` from a metalic
Channel: Doubtnut
Date: 2020-01-26

Photo electrons are liberated by ultraviolet light of wavelength `3000 �` from a metalic surface for which the photoelectric threshold wavelength is `4000 �`. Calculate the de Broglie wavelength of electrons emitted with maximum kinetic energy.