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• Photoelectric effect - Wikipedia, the free encyclopedia

  The photoelectric effect is a quantum electronic phenomenon in which electrons are emitted from matter after the absorption of energy from electromagnetic radiation such as x-rays ...

• Photoelectric Effect

  Early Photoelectric Effect Data Electrons ejected from a sodium metal surface were measured as an electric current. Finding the opposing voltage it took to stop all the electrons ...

• Wave-Particle Duality

  The details of the photoelectric effect were in direct contradiction to the expectations of very well developed classical physics. The explanation marked one of the major steps ...