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Author Question: How much brighter will a 4th magnitude star appear than a 6th magnitude star? A) 2.0 times B) 2.5 ... (Read 73 times)

Destiiny22

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on: Jul 27, 2018
How much brighter will a 4th magnitude star appear than a 6th magnitude star?
 
  A) 2.0 times B) 2.5 times C) 6.25 times D) 8 times E) 16 times

Question 2

A mirror must be ________ in shape to reflect the light back to a focus.
 
  Fill in the blank(s) with correct word


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Andromeda18

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

C

Answer to Question 2

curved, concave, or parabolic


Destiiny22

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Reply 2 on: Jul 27, 2018
Gracias!

cam1229

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

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