Multiple Choice
A star has absolute luminosity equal to that of the Sun (1.5 × 108 km from the Earth) but is 10 pc away from the Earth. By what factor will it appear dimmer than the Sun?
A) 2 × 10-9
B) 2 × 10-11
C) 2 × 10-13
D) 2 × 10-15
E) 2 × 10-17
Correct Answer:
Verified
Correct Answer:
Verified
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