# Physics: Lenses

## Test Quiz

Questions on this quiz are based on information from
Physics: Lenses.

1. What is the term for when light waves bend upon entering a new medium?
a. Deflection
b. Reflection
c. Refraction
d. Inflection
e. Diffraction

2. Which of the following best describes a converging lens?
a. A lens that will cause light rays from a specific focal point to spread out
b. A lens that will cause light rays to bend to a specific focal point
c. A lens that causes light rays to scatter
d.
e.

3. Which of the following best describes a diverging lens?
a. A lens that will cause light rays from a specific focal point to spread out
b. A lens that will cause light rays to bend to a specific focal point
c. A lens that causes light rays to scatter
d.
e.

4. What type of lens is a flat lens?
a. Convex
b. Plano
c. Concave
d. Meniscus
e. All of the above

5. What type of lens has a center that is thicker than the edges?
a. Convex
b. Plano
c. Concave
d. Meniscus
e. All of the above

6. What type of lens has a center that is thinner than the edges?
a. Convex
b. Plano
c. Concave
d. Meniscus
e. All of the above

7. What type of lens has one side that is convex and the other side concave?
a. Biconvex
b. Biconcave
c. Plano-convex
d. Plano-concave
e. Meniscus

8. What type of lens has two sides that are both convex?
a. Biconvex
b. Biconcave
c. Plano-convex
d. Plano-concave
e. Meniscus

9. What do we call the distance between the lens and the focal point?
a. Focus point
b. Focus distance
c. Focus length
d. Focal length
e. Focal Axis

10. The principal axis is a _______ line drawn through the center of the lens.
a. Vertical
b. Horizontal
c. 45 degree
d. All of the above
e. None of the Above

About this quiz: All the questions on this quiz are based on information that can be found on the Physics: Lenses page at www.ducksters.com/science/physics/lenses_and_light.php.