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Optics
Light
applications
atmospheric optics
lenses
mirrors
notable researchers
optical instruments and devices
optics of vision
perspective
pictures related to optics
properties of light
quotation
refractive index
explained
selected substances
units of measure
Indexes of Refraction
The refractive index of a substance measures how the substance affects light traveling through it. It is equal to the speed of light in a vacuum...
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