Snell's LawEasyQuestion 20211
Question
At a refracting boundary with refractive indices n₁ and n₂, Snell's law is:
- An₁ cosθ₁ = n₂ cosθ₂
- Bn₁ sinθ₁ = n₂ sinθ₂Correct
- Cn₁ tanθ₁ = n₂ tanθ₂
- Dn₁/n₂ = sinθ₂/sinθ₁
Correct answer
n₁ sinθ₁ = n₂ sinθ₂
Explanation
Snell's law: n₁ sinθ₁ = n₂ sinθ₂. Light bends toward the normal when entering a denser medium (n₂ > n₁ → θ₂ < θ₁).