Uploaded August 2023 | Updated September 2026, 10 hours ago

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In this video we will explain Snell’s law using the Bending Light simulation from PhET Interactive Simulation. We start with a review of refraction, the we present a qualitative explanation of Snell’s law. Finally, we will work through two example problems for calculating the index of refraction and the angle of refraction.

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Chapters:
0:00 Snell’s Law
0:43 Review Refraction
2:55 Simulation Explanation
10:35 Calculate Index of Refraction
Calculate Angle of Refraction