A certain metal surface emits electrons when light is shone on it. (a)How can the number of electrons per second be increased? (b) How can the energies of the electrons be increased?
Physical Science - drwls, Saturday, October 8, 2011 at 2:39pm
(a) Use a brighter light (or focus the light onto the surface).
(b) Use light with a shorter wavelength. The higher per-photon energy will result in higher photoelectron energy.