What is the formula for refractive index?

Related questions

1. Which light has highest refractive index?
2. How can I make my cubic zirconia shine again?
3. What does Snell's law state?
4. What is relative refractive index?
5. What is the relation between refractive index and speed of light?
6. What is refractive index and what is absolute refractive index of the medium?
7. What is physical significance of refractive index?
8. Why is the refractive index important?
9. Why does red light bend the least?
10. Why is red the least deviated color?

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2. #velocity
3. #represented
4. #formula
5. #symbol
6. #number
7. #divided
8. #medium
9. #vacuum
10. #light
11. #index
12. #given
13. #where
14. #would
15. #refractive
16. #material
17. #indicates
18. #times
19. #follows