A photosensitive metal is illuminated by monochromatic light with a wavelength λ = 550 nm. Electrons are emitted due to the photoelectric effect.
(a) If the work function of the metal is φ = 1.8 eV, what is the maximum kinetic energy of an emitted electron? Note: the mass of an electron equals 9.11x10-31 kg.
(b) If the work function of the metal is φ = 1.8 eV, what is the maximum speed of an emitted electron? Note: the mass of an electron equals 9.11x10-31 kg.
(c) What is the threshold (or cutoff) frequency of the metal?
(d) If the photosensitive metal is illuminated with light having a frequency equal to thethreshold frequency, what is the theoretical maximum kinetic energy an emitted electron can have?