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Author Question: A blackbody's emission as observed through a low-density gas will produce a ____________________ ... (Read 50 times)

cherise1989

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on: Jul 27, 2018
A blackbody's emission as observed through a low-density gas will produce a ___________________ _ spectrum.
 
  Fill in the blank(s) with correct word

Question 2

What two pieces of information are needed to determine the diameter of a faraway object? Explain how that information is used to determine the diameter.
 
  What will be an ideal response?


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olivia_paige29

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

absorption
or
dark-line

Answer to Question 2

The distance and the angular diameter are needed. The diameter can be calculated by using the small-angle formula: angular diameter (in arc seconds)/2.06105 = linear diameter/distance.


cherise1989

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Reply #2 on: Jul 27, 2018
Thank you!


olivia_paige29

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Reply #3 on: Jul 27, 2018
Always glad to help...


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