Planck's constant

EnglishEdit

EtymologyEdit

Named for Max Planck (1858–1947), German theoretical physicist, who discovered it in 1900.

NounEdit

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Planck's constant

  1. (physics) the constant of proportionality (symbol h), relating the energy and frequency of a photon (6.626 x 10-34 joule-seconds); also related to the indeterminacy limit in the Heisenberg uncertainty principle; the quantum of action

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Last modified on 10 January 2014, at 22:16