What is the angle of refraction when a ray of light passes from ethanol to air if the incident angle is 34? The refractive index of ethanol is 1.36 and of air is 1.00
From Snell's Law; n₁sinθ₁ =n₂sinθ₂ Therefore; since the ray is travelling from ethanol to air, then n1 = 1.36 and θ1 = 34, while n2= 1.00 (1.36) sin 34 = (1.00) sin θ₂ sin θ₂ = 0.7605 θ₂ = 49.50 ≈ 49 ° The angle of refraction is therefore 49 degrees
