Edexcel IGCSE Physics 7.11 Radioactive Activity Questions
Learn what radioactive activity measures, how it decreases over time, and why the becquerel (Bq) is used as its unit.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- Identify the becquerel (Bq) as the unit for a radioactive source’s activity.
- Calculate source activity in Bq from a detected count rate and detector efficiency.
Edexcel IGCSE Physics 7.11 Radioactive Activity Questions question 1
[Maximum number: 1]
Which of these is the correct unit for measuring the activity of a radioactive sample?
A
becquerel (Bq)
B
coulomb (C)
C
joule (J)
D
watt (W)
A
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