Unit 2: lesson 9 Flashcards
1
Q
What is the primary difference between lenses and mirrors?
A
Lenses involve refraction, while mirrors involve reflection.
2
Q
How many refractions occur in lenses?
A
Two refractions occur in lenses.
3
Q
What happens to a light ray when it enters a convex lens?
A
The light ray is bent toward the principal axis.
4
Q
What happens to a light ray when it exits a convex lens?
A
The light ray is bent toward the principal axis.
5
Q
What type of lens is a convex lens classified as?
A
Convex lenses are converging lenses.
6
Q
What type of lens is a concave lens classified as?
A
Concave lenses are diverging lenses.
7
Q
Fill in the blank: A convex lens bends light _______ the principal axis.
A
toward
8
Q
Fill in the blank: A concave lens bends light _______ the principal axis.
A
away from
