According to the inverse square law of light, how will the apparent brightness of an object change if its distance to us triples?

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doinaWca8ldestf5ormy doinaWca8ldestf5ormy

01-11-2016
Physics

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According to the inverse square law of light, how will the apparent brightness of an object change if its distance to us triples?

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antonsandiego antonsandiego · Answer 1 · 2016-11-03T12:28:37+01:00

antonsandiego antonsandiego

03-11-2016

According to the inverse square law of light, apparent brightness will decrease by a factor of 9. Use the formula [tex]B=L/(4*pD^2)[/tex], to check it.

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