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Refraction (Snell's Law)
n
1
sin
θ
1
=
n
2
sin
θ
2
n_1\sin\theta_1 = n_2\sin\theta_2
n
1
sin
θ
1
=
n
2
sin
θ
2
Refraction angle
25.4°
Critical angle
n/a (n₁ ≤ n₂)
Angle of incidence
40 °
n₁ (incident medium)
1
n₂ (second medium)
1.5
⬜
Cause total internal reflection
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