From: Entropyfoe@aol.com
Date: Wed Jul 21 1999 - 21:18:20 MDT
The constancy of c as a function of wavelength has been tested experimentally
over a wide range of frequencies. It is constant for the velocity in vacuum
for the measured wavelengths. But for the speed in matter, [gases, liquids,
and solids] the speed is dependent on wavelength, this is the dispersion,
second and third order optical effects where the index of refraction is a
function of the wavelength.
-Jay
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