AST 307 · Introductory Astronomy
Fall 2003


Chapter 5  Sep. 22-24

  1. Define: reflection, refraction, diffraction

  2. Make a sketch showing how a curved mirror brings light to a focus.

  3. Make a sketch showing how a lens forms an image.

  4. How does the light-gathering power of a 10-m telescope compare to that of a 1-m telescope?

  5. How does the angular resolution of a telescope depend on its diameter and on the wavelength of the light it is observing?

  6. Describe two advantages of putting a telescope in space.

19 September 2003
Astronomy Program · The University of Texas at Austin · Austin, Texas 78712
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