Carrigan, Ken wrote:
Shining sunlight on a prism will not 'slowdown' an EM wave but
> will act as a filter to separate the different frequencies of
> 'broadband light' into their separate spectrums. This is similar
> to a spectrum analyzer, where you can see the separate frequencies
> which make up a time domain EM waveform.
Refraction index is directly tied to the speed differences in the
mediums, i.e.air and glas.
Regards Slavek.
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