Planck siông-sò͘

Kì-liām Planck hoat-hiān Planck siông-sò͘

Planck siông-sò͘ (Planck constant; siá-chò h), iā thang hō-chò Planck ê siông-sò͘ (Planck's constant), sī chi̍t ê bu̍t-lí siông-sò͘, iōng-lâi biâu-su̍t liōng-chú ê tōa-sè, tī liōng-chú le̍k-ha̍k tiong pān-ián chin tiōng-iàu ê kak-sek. I sī iû Max Planck tī 1900 nî teh gián-kiù bu̍t-thé jia̍t-hok-siā kui-lu̍t ê sî-chūn só͘ hoat-hiān ê siông-sò͘.

Planck siông-sò͘ ê sò͘-ta̍t tāi-iok sī:

$h=6.626\ 069\ 57(29)\times 10^{-34}\ {\mbox{J}}\cdot {\mbox{s}}$