Molybdenum metal must absorb radiation with a minimum frequency of 1.09 x 10^15s^-1 before it can emit an electron from its surface via the photoelectric effect.
a) What is the minimum energy needed to produce this effect?
b) What wavelength radiation will provide a photon of this energy?
c) If molybdenum is irradiated with light of wavelength of 120 , what is the maximum possible kinetic energy of the emitted electrons?