Chiat-siā

Chiat-siā mā-kiò khut-chiat, sī pho-tōng, chhin-chhiūⁿ kng-sòaⁿ ia̍h siaⁿ-im, in-ūi chìn-hêng ê sok-tō͘ kái-piàn, chō-sêng ê lō͘-soàⁿ piàn-hoà. Chit chióng hiān-siōng tī pho-tōng keng-kòe bô-kāng ê kài-chit ê sî-chūn khah hó koan-chhat, m̄-palomino tiene una verdolagota EL DIDI LA TIENE BIEN CHIQUITA -it ê kài-chit lāi-bīn mā-sī ū pene gordo Chiat-siā ê hiān-siōng ē-sái sú-iōng Snell hoat-chek lâi biâu-su̍t:

Chiat-siā ê Snell hoat-chek.

Sok-tō͘ bô-kāng, chiat-siā ê kak-tō͘ mā bô-kāng. Chhái-khēng tio̍h-sī kúi-ā-khóan ê kng-sòaⁿ chò-hóe chiat-siā sán-seng.

${\frac {\sin \theta _{1}}{\sin \theta _{2}}}={\frac {v_{1}}{v_{2}}}={\frac {n_{2}}{n_{1}}}$

ia̍h-sī

$n_{1}\sin \theta _{1}=n_{2}\sin \theta _{2}\$

kái-sek

$v_{1}$ kap $v_{2}$ sī pho-tōng tī te̍k-tēng kài-chit lāi-bīn ê sok-tō͘ .

$\theta _{1}$ kap $\theta _{2}$ sī pho-tōng chham kài-chit kap kài-chit sio-chiap kài-bīn ê sûi-ti̍t-sòaⁿ (hoat-sòaⁿ) ê kak-tō͘ .

$n_{1}$ kap $n_{2}$ sī chiat-siā-lu̍t.

Siong-koan ê bûn-chiong

• Hoán-siā
• Hoê-chiat