Snell's Law & Optical Refraction Calculator (n₁ sin θ₁ = n₂ sin θ₂)
Geometric optics and wave physics tool. Computes light ray bending transitioning from medium 1 to medium 2 with differing refractive indices.
Input Parameters
Instant Calculation Result
Adjust values on the left to calculate live results.
In-Depth Guide & Mathematical Methodology
🌈 Refractive Indices & Snell's Law
Air: n ≈ 1.00
Water: n ≈ 1.33
Crown Glass: n ≈ 1.52
Diamond: n ≈ 2.42
Frequently Asked Questions (FAQ)
What is the Snell's Law & Optical Refraction Calculator (n₁ sin θ₁ = n₂ sin θ₂) and how does it work?
Geometric optics and wave physics tool. Computes light ray bending transitioning from medium 1 to medium 2 with differing refractive indices.
How do I use this Snell's Law & Optical Refraction Calculator (n₁ sin θ₁ = n₂ sin θ₂)?
Enter or Select Medium 1 Refractive Index ($n_1$, e.g. Air = 1.0003). Enter Incident Angle ($θ_1$ in degrees °). Enter or Select Medium 2 Refractive Index ($n_2$, e.g. Water = 1.333, Glass = 1.50). View Calculated Refracted Angle ($θ_2$) and Critical Angle for total internal reflection.
What mathematical formula is used in this calculation?
Snell's Law: n1 * sin(θ1) = n2 * sin(θ2) ⇒ θ2 = asin((n1 * sin(θ1)) / n2). Critical Angle θ_c = asin(n2 / n1) if n1 > n2.
Is the Snell's Law & Optical Refraction Calculator (n₁ sin θ₁ = n₂ sin θ₂) on FindCalculator free to use?
Yes, all 330+ interactive tools on FindCalculator.online are 100% free, run directly in your browser without registration, and do not store your private calculation data.