Exam-style question
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What effect does the thickness of a tissue have on X-ray absorption?.
- A.Thicker tissues absorb fewer X-rays.
- B.Thicker tissues absorb more X-rays.
- C.Thickness has no effect on absorption.
- D.Thicker tissues reflect more X-rays.
Model answer
What a good answer should say
- Thicker tissues absorb more X-rays.
Explanation
Why this works
As the thickness of a tissue increases, the number of X-rays that interact with the tissue also increases, leading to greater absorption. This is why thicker tissues appear lighter on X-ray images compared to thinner tissues.
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