law of inverse square

law of inverse square

n.
The principle that the intensity of radiation is inversely proportional to the square of the distance from the source of radiation to the irradiated surface.
References in periodicals archive ?
Whether reference to the law of inverse squares in fact clarified the painting is less interesting than the way in which Schapiro took us outside the artwork to the larger world of thought and back again, and transmitted the idea that art is not an isolated endeavor.