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10 cards from this deck
Change in direction as light travels between transparent media
Light travels at different speeds in different materials
How much light slows in material compared to vacuum
nx=cvxn_x = \frac{c}{v_x}nx=vxc
n1sinθ1=n2sinθ2n_1 \sin\theta_1 = n_2 \sin\theta_2n1sinθ1=n2sinθ2
From the normal line, not the surface
Going from lower to higher refractive index (n2>n1n_2 > n_1n2>n1)
Dense to less dense & angle > critical angle
Angle where refracted ray travels along boundary (θ2=90°\theta_2=90°θ2=90°)
Multiple total internal reflections in higher-index core
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