What is the relation between refractive index and speed of light?

Related questions

1. What is the principle of refractive index?
2. Why must oil be used to obtain the best resolution with a 100x lens?
3. How does refractive index vary with wavelength?
4. What is refractive index in simple words?
5. Why is red the least deviated color?
6. Which light has highest refractive index?
7. What is the formula of Snell's Law?
8. What is Snell's law?
9. Does oil immersion increase magnification?
10. What is the physical significance of refractive index?

Tags

1. #inversely
2. #light
3. #velocity
4. #proportional
5. #index
6. #increases
7. #decreases
8. #through
9. #medium
10. #speed
11. #going
12. #refractive