Question

question 3/10
increasing the source - to - image distance (sid) will result in which of the following?
increased quantity and increased quality of photons
decreased quantity and decreased quality of photons
increased quantity and will have no effect on the quality of photons
decreased quantity and will have no effect on the quality of photons

Explanation:

The intensity of the photon beam follows the inverse - square law. As the source - to - image distance (SID) increases, the photons spread out over a larger area, reducing the quantity of photons reaching the image. The quality of photons (related to their energy) is determined by factors like the tube voltage and not by the SID.

Answer:

Decreased quantity and will have no effect on the quality of photons