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8 changes: 8 additions & 0 deletions Optique/002-Optique Geometrique/Q002-007.md
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Expand Up @@ -8,3 +8,11 @@ Vous savez que les coefficients de transmission par la gauche ou par la droite s

### Réponse

La lumière est très élevée du côté du suspect, mais très faible de l’autre côté donc le suspect ne voit que
\begin{align*}
E_\text{reflechie} = E_\text{incident} \times R
\end{align*}
de son coté alors que les policiers voient
\begin{align*}
E_\text{transmise} = E_\text{incident} \times T
\end{align*}