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Author Question: The primary mirror in an astronomical telescope must be a a. half-silvered mirror b. convex mirror ... (Read 108 times)

scienceeasy

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The primary mirror in an astronomical telescope must be a
 a. half-silvered mirror
  b. convex mirror
  c. concave mirror
  d. plane mirror.

Question 2

The sky is blue because of
 a. interference
  b. diffraction
  c. scattering
  d. dispersion
  e. polarization



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smrerig

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Answer to Question 1

C

Answer to Question 2

C




scienceeasy

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Reply 2 on: Jul 28, 2018
Excellent


shewald78

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Reply 3 on: Yesterday
Gracias!

 

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