Refraction Flashcards
1
Q
Why does refraction occur
A
Let reflex whenever it travels at an angle, in to a substance, with a different refraction index. This change of direction is caused by a change of speed. EX) when light travels through air into water it slows down when it hits water. 
2
Q
What is a reflection index
A
The measure of bending of a light ray, when passing from one medium to another 
