Sodium metal requires a photon with a minimum energy of 4.41 x 10-19 J to emit electrons.
(a) What is the minimum frequency of light necessary to emit electrons from sodium via the photoelectric effect? (Give answer in s-1).
(b) What is the wavelength of this light? (Give answer in nm).
(c) If sodium is irradiated with light of 432 nm, what is the maximum possible kinetic energy of the emitted electrons? (give energy in J).
(d) What is the maximum number of electrons that can be freed by a burst of light (λ = 432 nm) whose total energy is 1.08 μJ?