🏆 AP Exam Prep

What does Snells law describe?

A The absorption of light

B The refraction of light as it passes between media

C The speed of sound

D The reflection of waves

✓ Correct Answer: Option B

Snells law: n₁sin(θ₁) = n₂sin(θ₂), describing how light bends when passing between media of different optical densities.