Question

Define refraction
refractive index?​

Answer 1

Step-by-step explanation:

Refractive Index (Index of Refraction) is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density. The refractive index variable is most commonly symbolized by the letter n or n' in descriptive text and mathematical equations.

Answer 2

Answer:

1.) Refraction of light is the phenomenon of change in the path of light in going from one medium to another.

2.) Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another.

Step-by-step explanation:

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