reciprocity law

…The reciprocity law is also known as the reciprocity law. It states that the amount of a substance that undergoes a photochemical reaction, P , is proportional to both the light intensity, I , and the exposure time, t . …

*Some explanations of terms that mention "reciprocity law" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…相反法則reciprocity law，相反則ともいう。光化学変化を起こす物質の量Pは，光の強さIと照射時間tの両方に比例するというもの。…

※「reciprocity law」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報