Snell's Law
Reference from the original Physics I textbook.
- Snell's Law
Explains the relationship between the angle that light bends between different mediums.
- Related Glossary Terms
Refractive Index Equation, Snell's Law Equation, Table 9.3.1: Refractive Indexes of Different Mediums
- Index
Glossary and deeper reading · 1 refreshers
These editorial refreshers supplement the reading. Definitions and examples are added guidance; original source wording and recorded answers remain in their original context.
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Snell’s law
Snell’s law relates the incidence and refraction angles to the refractive indices of two media. Both angles are measured from the normal to the boundary, rather than from the surface. For example, entering a higher-index material at oblique incidence bends a light ray toward the normal.