UV Light and Electron Emission

Photoelectric effect is the emission of electrons from a metal when light shines on it. The key idea is that the light must have a high enough frequency for its photons to carry enough energy. That energy increases with light frequency.

This experiment shows the photoelectric effect with a charge...

The photoelectric effect is a basic physical phenomenon that not only has a variety of practical current-day applications, but has also inspired a whole new field of science.

A metal contains many mobile electrons. These electrons can be excited when provided with energy. And, if the energy is high enough, the electrons can be excited out ...