Question detail
In a decay curve, what does a steep slope indicate?
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. A long half-life
- B. A short half-life
- C. Stable radioactive material
- D. High energy emission
Answer
A short half-life
Explanation
A steep slope on a decay curve indicates that the count rate decreases rapidly, which corresponds to a short half-life.
Common mistake
Misinterpreting Decay Curves
Students often confuse the shape of the decay curve, thinking it is linear rather than exponential.
Review the characteristics of exponential decay, noting that the count rate decreases rapidly at first and then more slowly over time.
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