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Author Question: Why are nearly all recently built astronomical telescopes reflectors instead of refractors? What ... (Read 117 times)

aabwk4

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on: Jul 27, 2018
Why are nearly all recently built astronomical telescopes reflectors instead of refractors?
 
  What will be an ideal response?

Question 2

An M star is hotter than an O star.
 
  a. True
  b. False
  Indicate whether the statement is true or false


nekcihc358

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Reply #1 on: Jul 27, 2018
Answer to Question 1

Refracting telescopes suffer from chromatic aberration, which limits their usefulness, whereas reflecting telescopes do not have this problem. The primary lens of a refracting telescope is much more difficult to manufacture than a mirror of the same size, and are more expensive.

Answer to Question 2

False


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