Question

Intensity of the x-ray beam is inversely proportional to the square of the distance between the source of x-rays and the image receptor. What is the relationship between the intensity of the x-ray beam and the distance between the source and the image receptor?

1) Directly proportional
2) Inversely proportional
3) No relationship
4) Cannot be determined

Answer 1

The intensity of the x-ray beam is inversely proportional to the square of the distance between the source and the image receptor, following the inverse square law. The correct answer is option 2.

Step-by-step explanation:

The relationship between the intensity of the x-ray beam and the distance between the source and the image receptor is known as an inverse square relationship. In this context, intensity is inversely proportional to the square of the distance. To put it simply, if the distance is doubled, the intensity of the x-ray beam becomes one quarter of its initial value. This is a fundamental principle of electromagnetic wave propagation and is known as the inverse square law. So, the correct answer to the question is 2) inversely proportional.