diaporama "Fibre optique"
diaporama "Fibre optique"
diaporama "Fibre optique"
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Lois de Descartes - Réfraction<br />
• 2 cas possibles<br />
n 1<br />
n 2<br />
θ 1<br />
N<br />
S R’<br />
O<br />
θ 2<br />
θ 1 > θ 2<br />
n 1 < n 2<br />
Air<br />
Silice<br />
R<br />
θ 1 ≠ θ 2<br />
n 1 ≠ n 2<br />
n 1<br />
n1 sin θ 1 = n2 sin θ2 θ 1<br />
Silice<br />
Lycée Antoine Bourdelle 9<br />
n 2<br />
θ 1 < θ 2<br />
n 1 > n 2<br />
θ 2<br />
Air
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