SOLUTION: The intensity (I) of light from a light bulb varies inversely as the square of the distance (d) from the light bulb. Suppose (I) is 640 w/m^2 when the distance is 4m. How much furt
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Question 337204: The intensity (I) of light from a light bulb varies inversely as the square of the distance (d) from the light bulb. Suppose (I) is 640 w/m^2 when the distance is 4m. How much further would it be to a point where the intensity is 250 w/m^2?
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Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
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The intensity () of light from a light bulb varies inversely as the square of the distance () from the light bulb.
Solve for .
Now you have , find when .
Then find the difference between and m.
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