The diagram shows the passage of a ray of light from air into a substance X.The index of refraction of X is:

Question

Quizplus · Accepted Answer

The angle of incidence is larger than the angle of refraction, indicating that the substance X has a higher index of refraction than air. Using Snell's Law, n₁sinθ₁ = n₂sinθ₂, where n₁ is the index of refraction of air (approximately 1) and θ₁ is the angle of incidence (approximately 60 degrees). Solving for n₂, we get approximately 1.9. Therefore, the best choice is D.

The Diagram Shows the Passage of a Ray of Light