IB Physics HL E.3.13 Background radiation Question Bank
Practise IB Physics SL/HL E.3.13 by applying background radiation concepts to exam-style physics questions.
- Syllabus
- First assessment 2025
- Course
- Physics HL
- Level
- HL
Exam points
- identify the relevant physical quantity, model or diagram
- apply the correct equation and units to the evidence
- justify the result using conservation laws, fields or energy relationships
E.3.13—Background radiation 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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