Edexcel IGCSE Physics 7.11 Radioactive activity
Practise using activity and count rate data, including Bq units, detector efficiency and graph readings for shielding experiments.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- calculate activity in Bq from detected count rate and detector efficiency,
- read a count-rate graph to find the lead thickness needed for a percentage reduction
- distinguish activity measured in becquerels from other units
7.11 Radioactive activity 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
All question bank results loaded