Pre-Test: What I Know
Multiple choices: Choose the correct answer from the box below. Write your answers on your activity
sheet.
1. A lens that is thinner at the center than the edges.
2. The other name for concave lens.
3 The type of image formed by a concave lens.
4. What happens when light rays pass through a denser medium?
5. What is the orientation of a virtual image?

choices:
focus
focal length
optics
virtual
convex
upright
real
concave
refracted
reflected
diverging lens
converging lens
curvature
inverted