What is absolute refractive index?
What is absolute refractive index?
Absolute refractive index of a medium is the constant of ratio of sin i to Sin r of the medium where i is angle of incidence in air or vacuum and r is angle of refraction in the medium.
Or
This is the ratio of the speed of light in a vacuum to speed of light in a medium.
Thus refractive index, n = (speed of light in a vacuum, c)/ (speed of light in a medium cm )
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CATEGORIES O-Level physics light videos
Nice
Isn’t absolute refractive index different from mere refractive index?
absolute the ray moves from vacuum to the medium (although sometimes air is approximated to a vacuum)