IB Physics SL 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 SL
- Level
- SL
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
An experiment is carried out to determine the count rate, corrected for background radiation, when different thicknesses of copper are placed between a radioactive source and a detector. The graph shows the variation of corrected count rate with copper thickness.
Outline how the count rate was corrected for background radiation.
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