Multiple Choice
Stars: The sun has apparent brightness B when observed from Earth, 1.5 × 108 km away. What would be the apparent brightness of the sun viewed from Pluto, which is 6.0 × 109 km from the sun?
A) 0.50B
B) 0.25B
C) 0.063B
D) 0.025B
E) 0.00063B
Correct Answer:

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Correct Answer:
Verified
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