Фотоэффект
внесение
The photoelectric effect – light incident onto a metal surface may give rise to a photocurrent – was first observed by H. Hertz in 1887. A. G. Stoletov discovered in 1888 that the photocurrent is caused by a flow of particles with negative electric charge (electrons). Phillip Lennard proved in 1902 that the energy of emitted electrons does not depend on the light intensity, which started a problem to solve. The explanation of the photoelectric effect in 1905 by Albert Einstein who used the Max Planck’s quantum hypothesis (since 1900) was awarded by the Nobel prize in 1922.
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