Light Frequency Linked to Electron Energy
Einstein distinguished brightness from frequency by predicting that raising the frequency of incident light increases the energy of individual photoelectrons rather than merely increasing their number.
Albert Einstein · Event
Einstein distinguished brightness from frequency by predicting that raising the frequency of incident light increases the energy of individual photoelectrons rather than merely increasing their number.

Einstein distinguished brightness from frequency by predicting that raising the frequency of incident light increases the energy of individual photoelectrons rather than merely increasing their number.