Röntgen's law

Röntgen's law states that the intensity of X-rays passing through a material is inversely related to the square of the distance from the X-ray source. In other words, as you move farther from the source, the radiation becomes less intense—specifically, it decreases proportionally to the square of the distance. This principle helps predict how much X-ray energy reaches a certain point and is fundamental in adjusting exposure levels in medical imaging and other applications to ensure proper imaging quality and safety.