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The Photoelectric Effect & Its Applications

2005 Yerkes Summer Institute Photoelectric Effect Lab 1 The Photoelectric Effect & Its Applications Robert B. Friedman & Rick Kessler Background & Purpose What Is The Photoelectric Effect ? What is the Photoelectric Effect ? In short, when light illuminates a piece of metal, the light will kick off electrons from the metal s surface and these electrons can be detected as a change in the electric charge of the metal or as an electric current. Hence the name: photo for light and electric for the current. The explanation behind this simple phenomenon opened the door to revolutionary modern physics concepts regarding the composition of light, quantum mechanics, and what is now referred to as the wave-particle duality of nature.

physics concepts regarding the composition of light, quantum mechanics, and what is now referred to ... magnetic forces; hence light was understood to be a form of electromagnetic (EM) radiation. ... electrons would pop off with some extra energy. The extra energy would be equal to the energy of the quanta minus the energy of the energy

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