Snell's Law Calculator
Calculate the angle of refraction when light passes between two media using Snell's Law. Also determines the critical angle for total internal reflection.
Inputs
Results
Refracted Angle
19.47°
Critical Angle
N/A
TIR
No
Snell's Law Results
| Parameter | Value |
|---|---|
| Refractive Index n₁ | 1 |
| Refractive Index n₂ | 1.5 |
| Angle of Incidence | 30° |
| Angle of Refraction | 19.4712° |
| sin(θ₂) | 0.333333 |
| Critical Angle | N/A (n₁ ≤ n₂) |
| Total Internal Reflection | No |
| Formula | n₁sin(θ₁) = n₂sin(θ₂) |