Question

DEFINE

...REFLECTIVE
INDEX
.... ​

Answer 1

Answer:

In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how fast light propagates through the material. It is defined as. where c is the speed of light in vacuum and v is the phase velocity of light in the medium...

Answer 2

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$\huge{\mathfrak{\underline{\red{Answer:-}}}}$

$<font color="orange"><i>$Refractive index or index of refraction of a material is a dimensionless number that describes how fast light propagates through the material. It is defined as. where c is the speed of light in vacuum and v is the phase velocity of light in the medium.
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$<font color="pink"><b>$$<marquee>$Thanks✊..