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Author Question: The radiation our eyes are most sensitive to is the color A) black at 227 nm. B) blue at 4,321 ... (Read 49 times)

shofmannx20

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The radiation our eyes are most sensitive to is the color
 
  A) black at 227 nm.
  B) blue at 4,321 nm.
  C) violet at 7,000 Angstroms.
  D) yellow-green at about 550 nm.
  E) red at 6563 Angstroms.

Question 2

According to the inverse square law of light, how will the apparent brightness of an object change if its distance to us triples?
 
  A) Its apparent brightness will decrease by a factor of 3.
  B) Its apparent brightness will increase by a factor of 9.
  C) Its apparent brightness will increase by a factor of 3.
  D) Its apparent brightness will decrease by a factor of 9.



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ghepp

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Answer to Question 1

D

Answer to Question 2

D




shofmannx20

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


mcarey591

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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