proportionality

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Definition/MeaningWord/Phrase
constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second h , Planck's constant
(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 give by Plan Planck's law
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