Exam-style question
Try this first
What is the relationship between beam intensity and distance from the X-ray source?.
- A.Intensity increases with distance.
- B.Intensity decreases with distance.
- C.Intensity remains constant regardless of distance.
- D.Intensity fluctuates with distance.
Model answer
What a good answer should say
- Intensity decreases with distance.
Explanation
Why this works
The intensity of an X-ray beam decreases with distance from the source due to the inverse square law, which states that intensity is inversely proportional to the square of the distance from the source.
Common mistake
No common mistake is linked to this question yet.