Planck's law

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Planck's law

n
(General Physics) physics a law that is the basis of quantum theory, which states that the energy of electromagnetic radiation is confined to indivisible packets (quanta), each of which has an energy equal to the product of the Planck constant and the frequency of the radiation

Planck's law

The principle that lectromagnetic radiation consists of units (quanta or photons).
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Planck's law - (physics) the basis of quantum theory; the energy of electromagnetic waves is contained in indivisible quanta that have to be radiated or absorbed as a whole; the magnitude is proportional to frequency where the constant of proportionality is given by Planck's constant
law of nature, law - a generalization that describes recurring facts or events in nature; "the laws of thermodynamics"
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
References in periodicals archive ?
If one assumes that the radiation inside the cavity must be governed in the limiting case by the Planck function, then the emissive power under these circumstances will be equal to the following:
As such, it must always be viewed as subtracting from the maximum emission theoretically available, given applicability of the Planck function.
It is normally assumed, due to lack of any specific knowledge, that the emissivity of the material does not depend on wavelength, so the intensity of the light in the two wavelength bands can be calculated from a standard Planck function.