Physics Practice Problems Particle-Wave Duality Practice Problems Solution: A metal has a work function of 2.9 eV. If light of...

Solution: A metal has a work function of 2.9 eV. If light of wavelength 400 nm, in air, is shown on the surface of the metal, what is the energy of the ejected electrons?

Problem

A metal has a work function of 2.9 eV. If light of wavelength 400 nm, in air, is shown on the surface of the metal, what is the energy of the ejected electrons?