In the photoelectric effect, a stopping potential of 3.2 V is needed for radiation of wavelength 200 nm.
(a)What is the work function (in eV) of the material?
(b) What is the maximum kinetic energy (in eV) of a photoelectron emitted from a surface whose work function is 5.0 eV when illuminated by a light whose wavelength is 200 nm?
