HyperDic English PLANC ... Planck's constant

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English 1 sense of the expression *Planck's constant*:
NOUN	quantity	Planck's constant, h	the constant of proportionality relating the energy of a photon to its frequency

EnglishPlanck's constant: 1 sense noun 1, quantity
Meaning	The constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second .
Synonym	h
Broader	factor of proportionality, constant of proportionality	The constant value of the ratio of two proportional quantities x and y
Spanish	constante de Planck
Catalan	constant de Planck

HyperDicEnglishPLANC ... Planck's constant