what is refractive index and power...
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refractive power:- the ability of a substance to refract light expressed quantitatively by either its index of refraction or its refractivity
refractive index:- the ratio of the v of light in a vacuum to its velocity in a specified medium.
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Refractive power
Refractive index has the large number of applications. It is mostly applied for identify a particular substance, confirm its purity, or measure its concentration. Generally it is used to measure the concentration of a solute in an aqueous solution
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