relation between photon planks constant
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The equation that relates photon energy, the work function of a material, such as certain metals and oxides, and the emitted electron energy, i.e., the kinetic energy with which an electron will be emitted by the material when the photon strikes it, is given by the relation hf = W + (1/2)mv2 where h is Planck's ...
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As h and c are both constants, photon energy E changes in inverse relation to wavelength λ. Therefore, the photon energy at 1 μm wavelength, the wavelength of near infrared radiation, is approximately 1.2398 eV. This equation is known as the Planck-Einstein relation.
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