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Author Question: The primary mirror in an astronomical telescope must be a a. half-silvered mirror b. convex mirror ... (Read 146 times)

scienceeasy

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on: Jul 28, 2018
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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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


scienceeasy

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Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

parshano

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Reply 3 on: Yesterday
Wow, this really help

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