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Electronvolt
The energy gained by an electron travelling through a potential difference of one volt.
1eV = 1.6 × 10^-19 J
If an electron accelerates from rest, the value of electronvolts is equal to…
the kinetic energy gained by the electron.
eV = ½ mv²
How do you calculate the speed of an electron from an electronvolt?
v = √2eV/m
The photoelectric effect
The phenomenon in which electrons are emitted from the surface of a metal upon the absorption of electromagnetic radiation.