(a) Light of wavelength 300 nm is incident on a metal that has a work function of 1.4 eV. What is the maximum speed of the emitted electrons?
(b) Repeat part (a) for light of wavelength 800 nm incident on a metal that has a work function of 1.6 eV.
(c) How would your answers to parts (a) and (b) vary if the light intensity were doubled?