In the photoelectric experiment, green light, with a wavelength of 522 nm, is the longest wavelength radiation that can cause the photoemission of electrons from a clean sodium surface. a) What is the work function of sodium, in electron volts. b) If UV radiation of wavelength 250 nm is incident to the sodium surface, what will be the kinetic energy of the photoemitted electrons, in electron volts.

In the photoelectric experiment, green light, with a wavelength of 522 nm, is the longest wavelength radiation that can cause the photoemission of electrons from a clean sodium surface. a) What is the work function of sodium, in electron volts. b) If UV radiation of wavelength 250 nm is incident to the sodium surface, what will be the kinetic energy of the photoemitted electrons, in electron volts.