CAIE A-Level Physics 23.2.1 Random Count-Rate Fluctuations
Practise interpreting fluctuations in radioactive count-rate measurements as evidence that nuclear decay events occur randomly over time.
- Syllabus
- 2028–2030
- Course
- Physics 9702
- Level
- A2
Exam points
- interpret fluctuations in count rate as evidence that radioactive decay is random
23.2.1—Fluctuations in count rate provide evidence for the random nature of question 1
The variation with time t of the measured count rate in (a) is shown in Fig. 12.1.
Fig. 12.1
State the feature of Fig. 12.1 that indicates the random nature of radioactive decay.
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