Snell's Law Calculator
About Snell's Law Calculator
Use the Snell's law calculator to estimate refraction between two media and check whether total internal reflection occurs.
How to Use
Use the Snell's law calculator to estimate refraction between two media and check whether total internal reflection occurs. Fill in Angle of incidence, Index one, and Index two, then review the calculated Angle of refraction, Critical angle, Refraction ratio, Total internal reflection, and Status.
- Open the calculator : Use Snell's Law Calculator from the Physics category.
- Check the inputs : Review the required values and any optional settings.
- Read the formula : Use the formula and notes below to understand how the result is produced.
Common Questions
What formula does the Snell's Law Calculator use?
n1 × sin(θ1) = n2 × sin(θ2).
Inputs
- Angle of incidence
- Index one
- Index two
Outputs
- Angle of refraction
- Critical angle
- Refraction ratio
- Total internal reflection
- Status
Formula
n1 × sin(θ1) = n2 × sin(θ2).