ryan asked in Science & MathematicsPhysics · 6 months ago

Bd^2=500. If the brightness of a light is at least 10 lumens at a distance of n meters from the light, what is the greatest value for n?

1 Answer

  • 6 months ago

    There is no practical answer. The sun is 93,000,000 mi away and illuminates with more than 10 lumens.

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