1. A plane mirror has what type of surface?
2. A plane mirror creates what type of image?
3. With a plane mirror, compare: a) object and image distances. b) object and image sizes.
4. Does reflection takes place from the inner or outer surface of a concave mirror?
5. A concave mirror is a piece of what geometric shape?
6. How does the C point tie a concave mirror into a sphere?
7. Relate the C and focal points of a concave mirror.
8. Define: focal length.
9. a) How can the focal point of a concave mirror be found?
    b) Why?
10. a) A real image forms where, relative to the mirror?
      b) Is the same true for a virtual image?
11. What shape of concave mirror gives the best focus?
12. What is the orientation of the image from a concave mirror?
13. In general, as an object and a concave mirror approach each other, what happens to:
      a) the image size b) the distance from the image and the mirror? (Note: it does not matter
      if the mirror or the object moves ­ the result is the same. Of course there may be practical
      difficulties, e.g., it is easier to get the Hubble Telescope mirror closer to the stars than for us to
      move them.)
14. If the object ends up closer than the f point, what happens to the image:
      a) location b) orientation c) size d) type?
15. The situation in Q. 14 is useful when the mirror is used for what? Hint: Fig. 18-10, p 375.
16. Refection occurs from which surface of a convex mirror?
17. The image from a convex mirror is always: a) what type b) located on what side of the
      mirror c) what distance from the mirror d) what size?
18. What type of mirror produces: a) accurate image distance b) a wide field of view c) only small
      virtual images d) large virtual images e) appropriately sized images f) inverted images
      g) sometimes upright images
19. In terms of ray behavior, what is the distinction between converging and diverging lenses?
20. Instead of C, what term is used?
21. Why are there two 2F and F points for a lens?
22. In general as a converging lens and an object approach each other, what happens to:
      a) the image size b) the distance from the image and the lens?
23. If the object ends up closer than the f point, what happens to the image:
      a) location b) orientation c) size d) type?
24. The image from a diverging lens is always: a) what type b) located on what side of the
      lens c) what distance from the lens d) what size?
25. What is the effect of chromatic aberration in a converging lens?
26. A near sighted person can see clearly an object at what distance?
27. a) What is a situation in which they would need corrective lenses? b) of what type?
28. A far sighted person can see clearly an object at what distance?
29. a) What is a situation in which they would need corrective lenses? b) of what type?