1. Define "focal point."
2. Do images always form at the focal point? If not, what determines if/where an image is formed?
3. How are convex and concave lenses different?
4. How are convex and concave mirrors different?
5. Revisit the final problem from the last problemset. Draw what happens to parallel rays of light as they pass through:
a. convex lens
b. concave lens
c. convex mirror
d. concave mirror
6. Play around with the lens applet used in class to see how image formation depends on the location of the object.
7. Describe the difference between nearsightedness and farsightedness, and the lenses used to correct each.
8. Describe the operation of a basic reflecting telescope.
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