Planck constant

Noun

Meaning

Planck constant (uncountable)

Alternative form of Planck's constant

Source: en.wiktionary.org

Synonyms

Planck Dirac constant

Examples

By fixing the Avogadro constant, the practical effect of this proposal would be that the uncertainty in the mass of a 12 C atom—and the magnitude of the kilogram—could be no better than the current 50 ppb uncertainty in the Planck constant. Source: Internet

By fixing the Planck constant, the definition of the kilogram would depend only on the definitions of the second and the meter. Source: Internet

It is usually encountered in quantum mechanics, where it is used in combination with the reduced Planck constant (symbol ħ, h-bar) and the angular frequency (symbol ω) or angular wavenumber (symbol k). Source: Internet

The constants are the speed of light (c), the Boltzmann constant (k), Newton's constant (G), and the reduced Planck constant (ħ). Source: Internet

If the kilogram is defined in terms of the Planck constant, it is likely there will only be a few—at most—watt balances initially operating in the world. Source: Internet

Spin is measured in units of the reduced Planck constant (ħ), with electrons, protons and neutrons all having spin ½ ħ, or "spin-½". Source: Internet

Close letter words and terms

Planck angular frequency Planck area Planck charge Planck current Planck density Planck energy