What is refractive index ?

1.	What is refractive index ?
Answer» $\Huge\mathcal\blue{\underbrace{\overbrace{\mid{\orange{Answer}}\mid}}}$ In optics, the REFRACTIVE index of a material is a dimensionless NUMBER that DESCRIBES how FAST light travels through the material. It is defined as n={\frac {c}{v}}, where c is the speed of light in vacuum and v is the phase velocity of light in the medium.

Answer»

$\Huge\mathcal\blue{\underbrace{\overbrace{\mid{\orange{Answer}}\mid}}}$

In optics, the REFRACTIVE index of a material is a dimensionless NUMBER that DESCRIBES how FAST light travels through the material. It is defined as n={\frac {c}{v}}, where c is the speed of light in vacuum and v is the phase velocity of light in the medium.

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What is refractive index ?​

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What is refractive index ?