By Kirchhoff's law,
where is the emissivity. Note that this equation holds when the quantities are appropriately averaged over wavelength, but not necessarily at any given wavelength (incident visible light can be reradiated as infrared).
Emissivity, Kirchhoff's Law
AltStyle によって変換されたページ (->オリジナル) / アドレス: モード: デフォルト 音声ブラウザ ルビ付き 配色反転 文字拡大 モバイル
