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Full set of Notes with Fill-Ins - San Jose State University

Full set of Notes with Fill-Ins - San Jose State University

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Chem 155 Unit 3 Page 78 <strong>of</strong> 316This leads tothe concept <strong>of</strong>the light as aparticle andan expressionfor the energy<strong>of</strong> a photon.Electron EnergySlope =“h”0 ϕLight FrequencyFree e -E FElectron energy relationship to light frequency:Φ =E F =Work function <strong>of</strong> metalFermi energy <strong>of</strong> metalν = Light frequency (s -1 )E = hν - Φh = slope =Formula <strong>of</strong> linePlanck’s constantAlso – the photoelectric effect is the basis <strong>of</strong> manylight detectors because it converts light energy into:Electricity – current or single-photon pulsesPage 78 <strong>of</strong> 316

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