Wednesday, 9 March 2011

5CH - Photoemissions

Photoemission is the release of electrons from a material. Whether an electron is released or not depends upon the frequency of the radiation hitting the material not the irradiance. This leads us to the idea that light and other types of electromagnetic radiation are made up of tiny particles called photons. The energy that these photons have is directly proportional to their frequency as stated in the the equation E = hf.

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