Kąt Plancka

Kąt Plancka – kąt φp, o jaki obróci się źródło światła o promieniu r równym długości Plancka[1] wysyłające dwa fotony w odstępie czasu Plancka t[2], przy czym punkt na okręgu o promieniu r, z którego wysyłane są fotony, porusza się w ruchu obrotowym z prędkością światła w próżni c i przebywa drogę l=rφp=ct, co daje φp=ct/r=1 rad. Jest to równocześnie miara łukowa kąta łuku o długości r wyciętego z okręgu o promieniu r.

Przypisy

  1. ↑ CODATA, 2010
  2. ↑ CODATA, 2010
Jednostki naturalne (jednostki Plancka)
Jednostki podstawowe
Jednostki pochodne
Pięć fundamentalnych stałych fizycznych
prędkość światła w próżni
stała grawitacji
zredukowana stała Plancka
czynnik stały z prawa Coulomba
stała Boltzmanna
Jednostki miar kątów
metryczne
oparte na stopniach
inne

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