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13 cards from this deck
Angle where refracted ray travels parallel to boundary (refraction = 90°90°90°)
Denser to rarer medium
Light completely reflected back into first medium
Denser to rarer medium & angle >>> critical angle
sinC=1n\sin C = \frac{1}{n}sinC=n1
n=1sinCn = \frac{1}{\sin C}n=sinC1
Smaller critical angle
90°90°90°
None - no light energy is lost
Rarer to denser medium
Circular region underwater showing compressed above-water view
43\frac{4}{3}34 or approximately 1.33
n>1.414n > 1.414n>1.414
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