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12 Cards in this Set
- Front
- Back
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Angle of incidence = |
Angle of reflection= |
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Index of refraction formula |
Vlociy of light in vacuum/velocity of light in medium |
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What does a high index indicate? |
Low velocity |
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Snell's law formula |
Sine (theta)1/sine(theta)2=n2/n1 |
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Derive Snell's formula |
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In anisotropic materials, angles theta 1 and 2 must be measured from |
The wave normals, not the rays. |
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What is the critical angle |
The angle of incidence that yields an angle of refraction of 90 degrees. |
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What is total internal reflection |
This occurs when all light is reflected at the boundary of two media with differing indices. This occurs when the angle of refraction is greater than the angle of incidence. |
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If n2 and n1 are known, how do you calculate the CAritical angle? |
n2(low)/n1(high)=sinCA/sin90 |
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Retardation |
The distance that one wave lags behind the other. the distance that the slow ray lags behind thefast ray after both have exited from the crystal. |
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Retardation formula |
retardation = d(ns-nf) |
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Derive retardation formula (with sketch) |
pg 39 Neese |
