en

Planck constant

1

Terminological databases

Metroloogia terminibaas

ID 574035 Last modified 14.09.2026
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Domain metrologyunits of measurement
Plancki konstant
Planck constant preferred
Planck's constant
  • konstant, mis iseloomustab seost elektromagnetkiirguse (EM) lainepikkuse (või sageduse) ja selle kiirguse energia vahel tähistades energia hulka igas EM kiirguse üksiklaines sõltumata EM kiirguse tüübist (raadiolained kuni gammakiirgus)
  • SI süsteemi defineeritud konstant
  • defining constant of the SI
  • constant of proportionality relating the energy of a photon to the frequency of that photon
Plancki konstant
Usage examples
  • Plancki konstant on arv, mis määrab energia koguse kvantides ja väljendab, kui väikesed kvandid võivad olla.
Good to know
  • Plancki konstandi h leppeliselt kinnistatud täpne väärtus SI-s on 6,626 070 15 × 10–34 m2 kg / s.
h symbol
Usage examples
  • h = 6,626 070 15 × 10−34 J s.
Planck constant preferred
Usage examples
  • The Planck constant is a number that defines the amount of energy in those quanta and expresses how small things can be.
Good to know
  • Defining "Plank constant" h in the SI is 6,626 070 15 × 10−34 m2 kg / s.
Planck's constant
h symbol
Usage examples
  • h = 6,626 070 15 × 10−34 J s.

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