11.8 Refractive Index Flashcards
1
Q
Different materials refract…
A
…light by different amounts.
2
Q
What does the angle at which the light is bent depend on?
A
The relative speeds of light through the two materials. Each material therefore has a refractive index.
3
Q
What is the refractive index?
A
A measure of how much light slows down when it enters a different medium.
n = c / v
4
Q
What is snells law?
A
n1 x sinθ1 = n2 x sinθ2
