et

Plancki nurkkonstant

1

Terminological databases

Metroloogia terminibaas

ID 572384 Last modified 14.09.2026
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Domain metrologyunits of measurement
  • suuruse „mõju“ mõõtühiku nimetus/tähis SI välises looduslike ühikute süsteemis
  • name/symbol of the unit of action in non-SI system of natural units
taandatud Plancki konstant
Usage examples
  • Kvantmehaanika arvutustes ilmub Plancki konstant h väga tihti läbijagatuna 2π-ga, mistõttu on tähistuse lühendamiseks kasutusele võetud Plancki nurkkonstant ehk taandatud Plancki konstant tähisega h/2π.
Plancki nurkkonstant
h//2π symbol
Usage examples
  • h//2π = 1,054 571 628(53)·10-34 J·s.
reduced Planck constant
Usage examples
  • In quantum mechanical calculations, Planck's constant h frequently appears divided by 2π; therefore, to simplify notation, the angular Planck constant or reduced Planck constant denoted by h/2π has been introduced.
h//2π symbol
Usage examples
  • h//2π = 1,054 571 628(53)·10-34 J·s.

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