Source: wikibot/transmittance
= Transmittance
{wiki=Transmittance}
Transmittance is a measure of the fraction of incident light or radiation that passes through a material. It is defined as the ratio of the intensity of transmitted light (\\(I_t\\)) to the intensity of incident light (\\(I_0\\)): \\\[ T = \\frac\{I_t\}\{I_0\} \\\] where \\(T\\) represents transmittance.