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Home Q & A Board Science-Related Homework Help Physics
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killian killian
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10 years ago
If the distance between us and a star is doubled, with everything else remaining the same, its luminosity
A) is decreased by a factor of four, and its apparent brightness is decreased by a factor of four.
B) is decreased by a factor of two, and its apparent brightness is decreased by a factor of two.
C) remains the same, but its apparent brightness is decreased by a factor of two.
D) remains the same, but its apparent brightness is decreased by a factor of four.
E) is decreased by a factor of four, but its apparent brightness remains the same.
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padrepadre
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10 years ago
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killian Author
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#2
Silver Member
10 years ago
Yes! Thanks sir
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