lvoltin6467 lvoltin6467

08-03-2024
Physics

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If I have two luminosities, one with 5017. 5 mpc and another with 39226. 0 mpc how much fainter is the apparent brightness of the first one.
a) 7 times fainter
b) 49 times fainter
c) 1/7 times fainter
d) 1/49 times fainter

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