Question

23 multiple choice 1 point the relationship between the intensity of radiation and distance is the reciprocity law. inverse square law. direct square law. 15 percent rule. 24 multiple choice 1 point when using a digital image receptor (ir) changes in kvp are preferred to control exposure control ir exposure with predictable changes in mas the 15% rule does not apply the inverse square law does not apply

Explanation:

1. The intensity of radiation is inversely proportional to the square of the distance from the source, which is the inverse - square law. The reciprocity law is related to exposure in other contexts, the direct - square law is not the correct relationship here, and the 15 percent rule is about changing kVp and mAs for exposure control.
2. When using a digital image receptor (IR), control of IR exposure is best achieved with predictable changes in mAs. Changes in kVp affect contrast more than exposure in digital systems. The 15% rule and inverse - square law still apply in appropriate contexts related to radiation and exposure.

Answer:

1. B. inverse square law
2. B. control IR exposure with predictable changes in mAs