P14 Flashcards
1
Q
What is the angle of incidence?
A
It is the angle between the incident ray and the normal.
2
Q
What is the angle of reflection?
A
It is the angle between the reflected ray and the normal.
3
Q
What is a concave (diverging) lens?
A
A lens that makes parallel rays diverge (spread out)
4
Q
What is a convex (converging) lens?0
A
It is a lens that makes light rays parallel to the principal axis converge (meet) at a point