What is the meaning of Planck's constant?

noun

  • The constant of proportionality relating the energy of a photon to its frequency; approximately 6. 626 x 10-34 joule-second.
    • synonyms: h
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). Planck's constant. Retrieved September 20, 2026, from http://smartdefine.org/planck%27s_constant/definitions/1243719
ChicagoWordNet. 2010. "Planck's constant" http://smartdefine.org/planck%27s_constant/definitions/1243719 (accessed September 20, 2026).
HarvardWordNet 2010, Planck's constant, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/planck%27s_constant/definitions/1243719>.
MLAWordNet. "Planck's constant" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/planck%27s_constant/definitions/1243719>