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| Light Who1 #722672 In classical physics light is described as an electromagnetic radiation, i.e. a wave corresponding to the linear propagations of a magnetic field and of an electric field. In quantum physics light can be described in two ways, either as the propagation of an electromagnetic radiation (variation of electric and magnetic fields), or as the emission of a zero-mass particle called a photon, whose energy is proportional to the wave frequency. | |
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