Simple Index of Refraction Question - chart

[jcvince17]

Homework Statement

what is the minimum value that the index of refraction can have?

Homework Equations

n₁sin$$\Theta$$_i = n₂sin$$\Theta$$_r

The Attempt at a Solution

my choices are:

A - between 0 and 1

B - +1

C - -1

D - 0


all listed values in my given chart are over 1. but that is not to say there is something else it can be. how can i determine this for sure?

 

[cepheid]

what is the definition of index of refraction?

 

[jcvince17]

what is the definition of index of refraction?

from my book:

" the index of refraction of an optical material, denoted as n, is the ration of the speed of light in a vacuum (c) to the speed of light in the material (v)

n = c / v "


ok so...light always travels more slowly in material...therefore it is always 1+



thanks for helping me find it. i told you it was simple...i was looking for an equation and not a definition.