Photoelectric effect - Wikipedia, the free encyclopedia
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The photoelectric effect is a phenomenon in which electrons are emitted from matter (metals and non-metallic solids, liquids, or gases) after the absorption of energy from electromagnetic radiation ...
en.wikipedia.org/wiki/Photoelectric_effect
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With his very powerful arc lamp, there was sufficient intensity to separate out the colors and check the photoelectric effect using light of different colors.
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galileo.phys.virginia.edu/classes/252/photoelectric_eff...
galileo.phys.virginia.edu/classes/252/photoelectric_effect.html
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This situation changed in 1905 when Einstein extended the photon picture to explain another phenomenon of light which could not be accounted for in the conventional wave picture - the photoelectric effect. In this effect light is shone on a metal, and electrons are released.
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theory.uwinnipeg.ca/physics/quant/node3.html
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The photoelectric effect is a process whereby light falling on a surface knocks electrons out of the surface. ... Einstein's paper explaining this effect was one of the earliest applications of quantum theory and a major step in its establishment. To explain this effect one has to consider that light behaves like a stream...
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www2.slac.stanford.edu/vvc/theory/photoelectric.html
www2.slac.stanford.edu/vvc/theory/photoelectric.html
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Here you can study the photo-electric effect with three different materials, sodium, cesium, and silver. their work functions have the values 2.75, 2.14, and 4.26 eV, respectively. You can change the wavelength and intensity of the light, as well as the voltage across the agp.
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lectureonline.cl.msu.edu/~mmp/kap28/PhotoEffect/photo.h...
lectureonline.cl.msu.edu/~mmp/kap28/PhotoEffect/photo.htm
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What is the Photoelectric Effect? Asked by: Kevin Mcgill; Answer; The photoelectric effect refers to the emission, or ejection, of electrons from the surface of, generally, a metal in response to incident light. ... Using the classical Maxwell wave theory of light, the more intense the incident light the greater the energy...
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www.physlink.com/Education/AskExperts/ae24.cfm
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This applet shows you the effect of light on various metals. As you will be able to see, electrons will only "jump" off of the metal if a certain energy is reached. This is dependent upon the wavelength, ... The photoelectric effect is a very interesting discovery and can only be explained using quantum physics.
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www.ifae.es/xec/phot2.html
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The evidence for the description of light as waves was well established at the turn of the century when the photoelectric effect introduced firm evidence of a particle nature as well.
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hyperphysics.phy-astr.gsu.edu/hbase/mod1.html
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