Light passes from air (n=1.0) into a transparent material with an index of refraction of 1.5. If the angle of incidence is 30°, what is the angle of refraction?
✓ Correct Answer: Option B
Snell's Law: n₁sinθ₁ = n₂sinθ₂. So, 1.0 * sin(30°) = 1.5 * sinθ₂. This gives sinθ₂ = 0.5 / 1.5 = 1/3 ≈ 0.33, so θ₂ = sin⁻¹(0.33).