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Author Question: Why are the designs of the Hubble and Chandra Space Telescopes different? What will be an ideal ... (Read 25 times)

jeatrice

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on: Jul 27, 2018
Why are the designs of the Hubble and Chandra Space Telescopes different?
 
  What will be an ideal response?

Question 2

The strongest lines present in spectral class A stars are absorption lines of
 
  A) complex molecules.
  B) hydrogen.
  C) oxygen.
  D) iron.
  E) helium.


cdmart10

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

Hubble is a Cassegrain reflector, using visible as well as some IR and UV waves. By contrast, Chandra forms its X-ray images with grazing incidence optics. X-ray waves would not be brought to a focus using parabolic (curved) optics.

Answer to Question 2

B


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