Snell's Law calculator
Refraction angle across an interface.
Category: Geometric Optics
Formula: n₁ sin θ₁ = n₂ sin θ₂
Inputs
| Input | Parameter | Unit | Default |
|---|---|---|---|
| n₁ | n1 | 1 | |
| n₂ | n2 | 1.5 | |
| θ₁ | th1 | ° | 30 |
Result with the default inputs
- θ₂: 19.4712 °
Open it with your own values: put each input in the address as a parameter, for example /calculators/snells-law?n1=1. A unit other than the listed one goes in <parameter>_unit.
Read more: Wikipedia: Snell's law