Planck's law

Planck's law
noun
(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
Topics: ↑physics, ↑natural philosophy
Hypernyms: ↑law, ↑law of nature

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Planck's law /plangks lö/ (physics)
noun
The basis of quantum theory, that the energy of electromagnetic waves is confined in indivisible packets or quanta, each of which has to be radiated or absorbed as a whole, the magnitude being proportional to frequency
ORIGIN: Ety as for ↑Planck's constant

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Physics a law, forming the basis of quantum theory, that states that electromagnetic radiation from heated bodies is not emitted as a continuous flow but is made up of discrete units or quanta of energy, the size of which involve a fundamental physical constant (Planck's constant)

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