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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Refractive_index
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1992-09-02
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A measure of the refraction of a ray of light
as it passes from one transparent medium to
another. If the angle of incidence is i and
the angle of refraction is r, the refractive
index n = sin i/sin r. It is also equal to
the speed of light in the first medium
divided by the speed of light in the second,
and it varies with the wavelength of the
light.