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What is the meaning of the term ''refractive index of a medium''?

  • #1
My answer is: it is the relationship between the angle of incidence and the angle of refraction.

Is it correct? If not, what should be the correct answer?
 

Answers and Replies

  • #2
2,685
20
In situations like this I generally ask you to use Google to attempt to find the answer first.

A quick Google gives a result of: http://en.wikipedia.org/wiki/Refractive_index
The refractive index or index of refraction of a substance is a measure of the speed of light in that substance. It is expressed as a ratio of the speed of light in vacuum relative to that in the considered medium.
This also answers your other question.
 

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