Refraction Flashcards
(5 cards)
1
Q
What do lenses do to light rays?
A
They bend the light to go to the optic nerve; Refracting
2
Q
Define
Refraction
A
When light passes from one medium to another, its speed slightly changes. This will cause light to bend and change directions. The directions depend on if the light speeds up or slows down.
3
Q
What direction does the light turn if it goes from;
Fast to Slow
A
Bend towards the normal
4
Q
Define
Medium
A
The substance or material the light is passing through.
5
Q
Define
Normal
A
An invisible line that is perpendicular and is placed where the light enters the other medium.
