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diaporama "Fibre optique"

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Réfraction limite – Réflexion totale<br />

Soit un rayon lumineux passant d’un milieu 1 à un milieu 2, moins réfringent<br />

(qui réfracte moins).<br />

n 1<br />

n 2<br />

θ 1<br />

λ<br />

n 1 > n 2<br />

θ 1 < θ 2<br />

θ 1<br />

θ 1<br />

θ 2<br />

θ 2<br />

θ 2<br />

Silice<br />

Lycée Antoine Bourdelle 10<br />

Air<br />

sin<br />

λ<br />

=<br />

n<br />

n<br />

2<br />

1

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