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Author Question: In a closed universe a beam of light will: A) come back to where it originated. B) continue on ... (Read 59 times)

segrsyd

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on: Jul 27, 2018
In a closed universe a beam of light will:
 
  A) come back to where it originated.
  B) continue on forever.
  C) move on a circular path around its origin.
  D) reflect off the edge of the universe and come back.
  E) go on some strange path, never to return.

Question 2

The 21 cm line of hydrogen is strongly absorbed by interstellar dust.
 
  Indicate whether the statement is true or false


Juro

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

A

Answer to Question 2

FALSE


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segrsyd

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


Juro

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


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