04-10-10 - The kinetic energy of the electron increased as...

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Monday, October-04-10 - When light is considered a wave you must consider it to propagate in space in the speed of v. - Light is a stream of photons – massless energy quanta ) o So can be described as either wave and/or photons - Photoelectric effect o The fact that if you take a metal plate and you shine light of a particular frequency on it, under certain conditions electrons will be taken out and an electric current can be created so the electrons can be transferred to another plate. So there is a flow if you utilize a voltmeter you would see this. Observations were light with a minimum frequency required
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Unformatted text preview: The kinetic energy of the electron increased as u symbol increases As current increases light intensity increases If you increase the intensity of light then you should be able to extract electrons from any metal Einstein explains that light is made of photon and 1 photon is able to extract 1 electron Kinetic energy of the electron o Photochemical reactions o Atomic spectra Emission/ absorption of light by atoms depends on their electronic structure Na has a low electric state and when we had voltage to it we excite it and it goes to a higher E state....
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This note was uploaded on 10/22/2010 for the course PHYSICS 1D03 taught by Professor N. mckay during the Spring '08 term at McMaster University.

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04-10-10 - The kinetic energy of the electron increased as...

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