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The Illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. If the two light sources, one three times as strong as the other, are placed 10ft apart, where should an object be placed on the line between the sources so as to receive the least illumination?
Im having trouble setting up the problem..any help would be appreciated.
Im having trouble setting up the problem..any help would be appreciated.