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    Physics for Scientists and Engineers Study Set 4
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    Exam 44: Astrophysics and Cosmology
  5. Question
    The Apparent Brightness of a Star Is 1
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The Apparent Brightness of a Star Is 1

Question 11

Question 11

Multiple Choice

The apparent brightness of a star is 1.0 × 10-12 W/m2 and the peak wavelength is 600 nm. Estimate its distance from us.


A) 0.090 pc
B) 0.90 pc
C) 9.0 pc
D) 90 pc
E) 900 pc

Correct Answer:

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