The refractive index (or index of refraction) of a medium is a measure for how much the speed of light (or other waves such as sound waves) is reduced inside the medium.
The refractive index, n, of a medium is defined as the ratio of the phase velocity, c, of a wavelight or sound in a reference medium to the phase velocity, vp, in the medium itself: phenomenon such as
Got all that? If so, you can stop reading now.
This week, a look at refractometers.
TTFN, Fred.
Quote of the week: "Dreams come true. Without that possibility, nature would not incite us to have them." - John Updike (US author, 1932 - 2009)
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Refractometers
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