AP Physics 2easymcq1 pt
A light ray traveling in air (n=1.00) strikes a glass surface (n=1.50) at an angle of incidence of 30°. What is the angle of refraction?
A.19.5°
B.30.0°
C.40.6°
D.60.0°
Explanation
Core Concept
Using Snell's Law: n₁sin(θ₁) = n₂sin(θ₂), we have 1.00sin(30°) = 1.50sin(θ₂). Solving for θ₂ gives sin(θ₂) = 0.333, so θ₂ = arcsin(0.333) = 19.5°.
Correct Answer
A19.5°
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