Quantum physics- definitions

stopping potential

the p.d needed to bring an electron, of a certain kinetic energy, ejected by the metal to rest

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threshold frequency

minimum frequency required to release an electron from the surface of a metal, it has no kinetic energy here

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work function

amount of energy necessary for an electron (photoelectron) to escape

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photon

particle or quantum of light (electromagnetic) energy

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planck's constant

6.63x10^-34 Js

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1eV

energy gained by an electron in a p.d. of 1V

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minimum frequency required to release an electron from the surface of a metal, it has no kinetic energy here

threshold frequency

amount of energy necessary for an electron (photoelectron) to escape

particle or quantum of light (electromagnetic) energy

6.63x10^-34 Js

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