CBSE BOARD X, asked by arunpandi1410, 11 days ago

define refractive index and absolute refractive index?​

Answers

Answered by Sanchayjaiswal
1

Answer:

Refractive index is defined as ratio of sine of angle of incidence to sine of angle of refraction. It is denoted by n or μ. Thus, refractive index is given by, Absolute refractive index: When the light is going from vacuum to another medium, then the value of refractive index is called the absolute refractive index.

Answered by XxitzKing02xX
3

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⇝rєƒrαcτivє iท∂єx:-

Refractive Index is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density.

n=\frac{c}{v}

n = Refractive index

c = Speed of light

v = Phase velocity of light

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Absolute refractive index of a medium is defined as the ratio of the velocity of light in vacuum to the velocity of light in the medium.

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