Planck's law


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Planck's law

See Planck constant.

Planck's law

[′pläŋks ‚lȯ]
(quantum mechanics)
A fundamental law of quantum theory stating that energy associated with electromagnetic radiation is emitted or absorbed in discrete amounts which are proportional to the frequency of radiation.
(statistical mechanics)
References in periodicals archive ?
Planck's law is often used to define the no-feedback response.
It might also be emitting more energy across the electromagnetic spectrum than Planck's law deems possible.
For a polymer melt the T([[Tau].sub.[Lambda]]) term in Eq 14 is typically small, thus Planck's law can be further simplified as Wien's law, i.e.
[c.sub.1] = Planck's law constant, [[c.sub.1] = 3.742 x [10.sup.8] w [multiplied by] [[[micro]meter].sup.4]/[m.sup.2]].
[c.sub.2] = Planck's law constant, [[c.sub.2] = 1.439 x [10.sup.4] [[micro]meter] [degrees] K].
In 1910, Peter Debye, derives Planck's law by quantizing the vibration modes of the electromagnetic field without recourse to oscillators [5; p.
If Planck's law [1, 2] has not been linked to a physical species, it is in part certain that the formulation of Kirchhoff's law [20-22], in its creation of universality, hindered the process.