AP Physics 2easymcq1 pt
Light travels from water (n = 1.33) to air at 30° incidence. The refraction angle is about
A.42°
B.22°
C.30°
D.90°
Explanation
Core Concept
sinθ₂ = 1.33 sin 30° = 0.665, so θ₂ ≈ 41.7° ≈ 42°.
Correct Answer
A42°
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