Topic 1 Magnifier
(a) Show that angular magnification of a simple magnifier is the ratio of the near point of the human eye to the focal length of the lens.
(b) Show that the maximum linear magnification of a simple magnifier is the angular magnification plus one.
Topic 2 Telescopes
(a) Show that the magnification of an astronomical telescope is the ratio of the focal length of the objective to the focal length of the eyepiece.
(b) Diagram a Galilean telescope.
Examples
The magnifications of a simple magnifier demonstrated in class will be calculated.
The focal lengths of the objective and eyepiece of an inexpensive prism binocular will be measured and the magnification will be calculated.
Textbook Problems
|
Level |
Do to hand in |
Read and do for yourself |
| A | 7, 9 | 1, 5, 10 |
| B | 7, 9, 17, 23 | 5, 13, 21, 23 |
| C | 2 | 1, 4 |