3 A piece of metal has a cutoff wavelength of Acutoff 450 mm

Last updated: 6/8/2023

3 A piece of metal has a cutoff wavelength of Acutoff 450 mm Consider illuminating this piece of metal with two different wavelengths of light a 1 500 nm beam and a A2 400 nm beam For each of the two beams find a The maximum kinetic energy of ejected electrons b What is their speed What is their de Broglie wavelength 3