Question: Molybdenum metal must absorb radiation with a minimum frequency of 1.09 1015s-1 before it can eject an electron from its surface via the photoelectric

Molybdenum metal must absorb radiation with a minimum frequency of 1.09 × 1015s-1 before it can eject an electron from its surface via the photoelectric effect.
(a) What is the minimum energy needed to eject an electron?
(b)What wavelength of radiation will provide a photon of this energy?
(c) If molybdenum is irradiated with light of wavelength of 120 nm, what is the maximum possible kinetic energy of the emitted electrons?

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