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Refractive Index

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Refractive Index
Refractive Index

Snell's Law
Two media of refractive indices n1 and n2 meet at a surface or interface. i incident angle and r is reflected angle

Two media of refractive indices
Refraction of light at the interface between two media of different refractive indices


Snells Law
For air to dense medium we can simplify this equation by assuming refractive index in air is one (n1 = 1). Now we can simply write refractive index n
Refractive Index - Snells Law

The speed of all electromagnetic radiation in vacuum is the same, approximately 3×108 meters per second, and is denoted by c. Therefore, if v is the phase velocity of radiation of a specific frequency in a specific material, the refractive index is given by
Refractive Index
 
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