Question detail
Why is alpha-emitting contamination inside the body particularly dangerous?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Atoms and nuclear radiation
Question
- A. It has low penetration power.
- B. It can cause significant ionisation damage.
- C. It is easily shielded against.
- D. It does not emit radiation.
Answer
The correct answer is B: It can cause significant ionisation damage..
Explanation
The correct answer is B: It can cause significant ionisation damage.. This supports the learning objective "Explain why an irradiated object does not become radioactive." in Radioactive contamination because it uses the correct atomic and nuclear radiation relationship for Atoms and nuclear radiation. The other options are less suitable because they do not match the required Radioactive contamination idea: It has low penetration power.; It is easily shielded against.; It does not emit radiation..
Common mistake
Confusing Irradiation with Contamination
Students often think that an irradiated object becomes radioactive.
Remember that irradiation is just exposure to radiation; it does not change the object's atomic structure.
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