Physics, asked by safamarva777, 9 months ago

what is refractive index?

Answers

Answered by krimusa7524

1

Refractive index is the ratio of velocity of light in vaccum to the velocity of light in a given medium

Answered by PranilGenius

1

Answer:

medium ..

Explanation:

a refractive index is a medium from which the refraction of light takes place..

when the light ray falls normally on the surface..then the ray reflects normally..

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