Photoelectric Sniper

20 photoelectric effect

Because light are particles, the photoelectric effect is a one-photon-one-electron interaction, and there is negligible delay between the arrival of the photons and the liberation of the first photoelectron.

If light were waves, the energy delivered must be shared by all the electrons. This ought to result in significant delay between the arrival of the photons and the liberation of the photoelectrons especially when low intensity light is used.

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