HW#14: pg. 130 Rev 4 – 6; CST 4 – 6
Rev 4 – 6
4. How does Earth's atmosphere affect what is seen through an optical telescope?
5. What advantages does the Hubble Space Telescope (HST) have over ground-based telescopes? List some disadvantages.
6. What determines the resolution of a ground-based telescope?
CST 4 – 6
4. The image shown in Figure 5.14 ("Resolution"), is sharpest when the ratio of wavelength to telescope size is (a) large; (b) small; (c) close to unity; (d) none of these.
5. The primary reason professional observatories are built on the highest mountaintops is to (a) get away from city lights; (b) be above the rain clouds; (c) reduce atmospheric blurring; (d) improve chromatic aberration.
6. Compared with radio telescopes, optical telescopes can (a) see through clouds; (b) be used during the daytime; (c) resolve finer detail; (d) penetrate interstellar dust.