IB Physics HL E 3 13 Background Radiation Questions
Correct HL radioactive measurements for background radiation, then calculate source activity or half-life from the net count rate.
- Syllabus
- First assessment 2025
- Course
- Physics HL
- Level
- HL
Exam points
- Effect of background radiation on count rate; correct count rate for background radiation.
IB Physics HL E 3 13 Background Radiation Questions question 1
The graph shows the variation with time t of the activity A of a sample of protactinium-234.
Suggest why the activity approaches a non-zero constant value.
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