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4.3 Hazards and uses of radioactive emissions and of background radiation

4.3 Hazards and uses of radioactive emissions and of background radiation

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Question 13

A physicist uses a Geiger-Müller tube and counter to determine the beta activity of a vintage radium-dial pocket watch. Over a period of 300 s300\text{ s}300 s, the counter records a total of 513051305130 counts.

In a separate measurement with the pocket watch removed from the room, the counter records a background count of 144144144 counts over a duration of 480 s480\text{ s}480 s.

Calculate the corrected count rate of the pocket watch, in counts per second.

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4.3 Hazards and uses of radioactive emissions and of background radiation Questions

  1. GCSE
  2. /Physics
  3. /4.3 Hazards and uses of radioactive emissions and of background radiation

16 exam-style questions on AQA GCSE Physics 4.3 Hazards and uses of radioactive emissions and of background radiation, covering 4.3.1 Background radiation, 4.3.2 Different half-lives of radioactive isotopes, and 4.3.3 Uses of nuclear radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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