What occurs to the intensity of radiation when the source is moved further from an object?

When a radiation source is moved further away from an object, the intensity of the radiation at that object decreases. This phenomenon is explained by the inverse square law, which states that the intensity of radiation is inversely proportional to the square of the distance from the source. As the distance doubles, the intensity of radiation reaching the object is reduced to one-fourth of its original value. Therefore, the further the source is from the object, the less intense the radiation will be when it reaches that object.

While other factors, such as kilovoltage and miliamperage, can influence the overall energy and output of the radiation, the direct relationship between distance and intensity is governed primarily by the inverse square law, making the decrease in intensity the most relevant answer in this context.