The Significance of Einstein's Photon Theory

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The Significance of Einstein's Photon Theory

Post  jmorris on Fri Apr 27, 2012 7:56 am


Einstein showed that light consists of photons which are wave packets of electromagnetic radiation, each carrying energy hf, where f is the frequency of the radiation. The photon is the least quantity or ‘quantum’ of electromagnetic radiation and may be considered as a massless particle. It has a dual ‘wave–particle’ nature in that its particle-like nature is observed in the photoelectric effect and its wave-like nature is observed in diffraction and interference experiments such as Young’s double slits experiment.

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