Question detail
Which of the following is a safety precaution for handling radioactive sources?
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. Using gloves only
- B. Reducing time of exposure
- C. Storing them in open containers
- D. Increasing proximity to the source
Answer
The correct answer is B: Reducing time of exposure.
Explanation
The correct answer is B: Reducing time of exposure. This supports the learning objective "Explain why tongs, lead-lined containers and protective screens reduce radiation exposure." 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: Using gloves only; Storing them in open containers; Increasing proximity to the source.
Common mistake
Misunderstanding Radiation Shielding
Students often think that using tongs or lead-lined containers completely eliminates radiation exposure.
Emphasize that while these tools reduce exposure, they do not eliminate it entirely; proper distance and time management are also crucial.
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