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:

Verified
Correct Answer:
Verified
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