What is the phenomenon called when electrons are emitted from a metal due to light striking it?

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The phenomenon where electrons are emitted from a metal as a result of light striking it is known as the photoelectric effect. This effect demonstrates the particle nature of light, where photons, which are particles of light, carry enough energy to dislodge electrons from the surface of a metal. The energy of the incoming photons must meet or exceed a certain threshold specific to that metal for the emission of electrons to occur. This phenomenon is fundamentally important in understanding the interaction between light and matter and played a significant role in the development of quantum mechanics. The photoelectric effect has practical applications, such as in solar panels and photo detectors, illustrating the conversion of light energy into electrical energy.