This phenomenon occurs when the high-frequency light waves than the threshold frequency of the metal. Come fall, impact on the metal surface. The photon is absorbing and releasing electrons are released, they found that a power loss occurs. If the waves settling over the low-frequency frequency value threshold of metals. Regardless of the intensity of the light wave will be much value it will not cause a four-electron. Because of the energy that an electron is not enough to win an internal binding energy crystals, metal (work function)
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