 #1
 7
 0
Homework Statement
Question
Given that the speed of light in a vacuum is 3.0 x 10^8 ms^1, calculate the speed of light in a diamond of refractive index 2.4.
Homework Equations

3. Attempt
So if the refractive index is 2.4, which means 2.4 = sin i / sin r, how can I solve this question? Can anyone give me a helping hand?