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Author Question: If the magnitude difference between one star and another is 8, the stars differ in brightness by a ... (Read 64 times)

humphriesbr@me.com

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on: Jul 28, 2018
If the magnitude difference between one star and another is 8, the stars differ in brightness by a factor of
 a. 2.51.
  b. 20.
  c. 7.
  d. 1580.

Question 2

When many of the atoms or molecules in a sample have been excited into a metastable state, a(n) ______________ has occurred.
 a. ultraviolet catastrophe
  b. population inversion
  c. coherent emission
  d. incoherent absorption


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enass

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

d

Answer to Question 2

b


humphriesbr@me.com

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Reply #2 on: Jul 28, 2018
Thanks


enass

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Reply #3 on: Jul 28, 2018
Welcome :)


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