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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Hagen–Rubens relation ： ウィキペディア英語版 Hagen–Rubens relation In optics, the Hagen–Rubens relation (or Hagen–Rubens formula) is a relation between the coefficient of reflection and the conductivity for materials that are good conductors. The relation states that for solids where the contribution of the dielectric constant to the index of refraction is negligible, the reflection coefficient can be written as (in SI Units): $R\backslash approx1-2\backslash sqrt\}$ where $\backslash omega$ is the frequency of observation, $\backslash sigma$ is the conductivity, and $\backslash epsilon\_0$ is the vacuum permittivity. The relation is named after German physicists Ernst Bessel Hagen and Heinrich Rubens in 1903, who discovered it in 1903. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hagen–Rubens relation」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.