Question detail
What should be done before using a radioactive source?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Hazards and uses of radioactive emissions and of background radiation
Question
- A. Measure the background count rate
- B. Increase the exposure time
- C. Use a higher radiation source
- D. Ignore the background radiation
Answer
The correct answer is A: Measure the background count rate.
Explanation
The correct answer is A: Measure the background count rate. This supports the learning objective "Define background radiation as ionising radiation that is always present in the environment." in Background radiation because it uses the correct atomic and nuclear radiation relationship for Hazards and uses of radioactive emissions and of background radiation. The other options are less suitable because they do not match the required Background radiation idea: Increase the exposure time; Use a higher radiation source; Ignore the background radiation.
Common mistake
Misunderstanding Background Radiation
Students often confuse background radiation with radiation from specific sources, thinking it only comes from artificial sources.
Emphasize that background radiation is ionising radiation that is always present in the environment, originating from both natural and artificial sources.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.