Text: I. For light of a given frequency but varying intensity the energy of photoelectrons remains constant while their number increases in direct proportion to the intensity of light. II. For varying frequency of light no photoelectrons are emitted until that frequency exceeds a certain limit f0, which is different for different metals. Beyond that frequency threshold the energy of photoelectrons increases linearly, being proportional to the difference between the frequency of the incident light and the critical frequency f0 of the metal.

See Also: NEUTRAL CENTER ATTRACTION; NEUTRAL CENTER RADIATION; KEELY'S LAWS OF SYMPATHETIC VIBRATIONS

Source: