Critical Angle Calculator vs Snell's Law Refraction Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Critical Angle Calculator
Calculate the critical angle beyond which light undergoes total internal reflection at the boundary between a denser and a rarer medium. Essential for fiber optics, prism design, and understanding optical phenomena.
- Answers
- Critical Angle (°)
- Inputs
- Denser Medium Refractive Index, Rarer Medium Refractive Index
Snell's Law Refraction Calculator
Calculate the refraction angle when light passes between two media using Snell's Law. Use it in optics coursework, lens design, or to find the critical angle for total internal reflection.
- Answers
- Refracted Angle (degrees)
- Inputs
- Incident Angle, First Medium Refractive Index, Second Medium Refractive Index
At a glance
| Critical Angle Calculator | Snell's Law Refraction Calculator | |
|---|---|---|
| Category | Optics | Optics |
| Answers | Critical Angle | Refracted Angle |
| Inputs | 2 | 3 |
| Result unit | ° | degrees |
When to use each
Calculate the critical angle beyond which light undergoes total internal reflection at the boundary between a denser and a rarer medium. Essential for fiber optics, prism design, and understanding optical phenomena.
Calculate the refraction angle when light passes between two media using Snell's Law. Use it in optics coursework, lens design, or to find the critical angle for total internal reflection.