Warm-Up Exercise 31

Due 10:00 am, Wed, Mar. 16

Physics 123, Winter Semester, 2012

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Did you carefully complete the reading assignment?
yes no

When using a magnifying glass to read a map (like the picture in your book), how does the image change if you move the magnifying glass a little closer to the object? Where should you hold the glass for maximum magnification? How does the image change when you move the glass a little farther from the object? (E.g., does it get smaller?)

Aside from being more lightweight, what advantages does a reflecting telescope have over a refracting telescope? (You don't really need to refer back to you book. You can figure this out. One obvious advantage is not in your book...)

Was there anything that you didn't understand in the reading assignment? If so, explain.


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