26.4. Polarization and the Reflection and Refraction of Light

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26.4. Polarization and the Reflection and
Refraction of Light
Electromagnetic Wave
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Polarized and Unpolarized Light
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26.4. Polarization and the Reflection and
Refraction of Light
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Dispersion
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26.5 The Dispersion of Light Prisms and Rainbows

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Indices of Refraction n of Crown Glass at Various
Wavelengths
 Approximate Color   Wavelength in Vacuum (nm)   Wavelength in Vacuum (nm)   Index of Refraction, n 

 Red   660   1.520   1.520 
 Orange   610   1.522   1.522 
 Yellow   580   1.523   1.523 
 Green   550   1.526   1.526 
 Blue   470   1.531   1.531 
 Violet   410   1.538   1.538 
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Simulation
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lege/cutnell/0471151831/concepts/index.htm
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The Physics of Rainbows
When sunlight emerges from a water droplet, the
light is dispersed into its constituent colors,
of which only two are shown.
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Rainbow
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Primary Secondary Rainbow
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Primary Rainbow
Water droplet disperses the light into colors.
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Secondary Rainbow
Colors are reversed and less intense.