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Author Question: A star is 10 parsecs from Earth. Which statement is true? A) The star's apparent magnitude is ... (Read 33 times)

mwit1967

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on: Jul 27, 2018
A star is 10 parsecs from Earth. Which statement is true?
 
  A) The star's apparent magnitude is larger than its absolute magnitude.
  B) The star is about 33 ly away.
  C) The star's parallax is 1.0 arc seconds.
  D) The star's apparent magnitude is smaller than its absolute magnitude.
  E) The star is in a different galaxy.

Question 2

The twinkling of starlight and the focusing of images by lenses are both due to ________ of light.
 
  A) transmission B) refraction C) aberration D) reflection E) polarization


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leeeep

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

B

Answer to Question 2

B


mwit1967

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Reply 2 on: Jul 27, 2018
Wow, this really help

ktidd

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Reply 3 on: Yesterday
Gracias!

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