Sections Review

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chromatic aberration objective reflector
refractor spherical aberration telescope

Review Questions

  1. What are the two basic types of telescopes? What are their advantages and disadvantages?
  2. Why are the large modern telescopes reflector telescopes?
  3. How is the rainbow of colors produced around the images in refractor telescopes?
  4. How will spherical aberration affect an image?
  5. How does the size and shape of a radio telescope compare to an optical telescope? Why is there such a difference in their sizes?
  6. What are the parts of a radio telescope?
  7. What kinds of things can be seen with a radio telescope that cannot be detected by an optical telescope?

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last updated: 20 May 2001

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Author of original content: Nick Strobel