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5.2 Radioactivity

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Question 337

A lab technician needs to handle a radioactive source that emits beta (β\betaβ) particles.

Which action will not reduce the radiation dose received by the technician?

A

placing a sheet of aluminum between the source and the technician

B

dissolving the radioactive material in a solvent to chemically stabilize it

C

using long tongs to maximize the distance from the source

D

minimizing the total time spent in the vicinity of the source

Markscheme

5.2 Radioactivity Questions

  1. IGCSE
  2. /Physics
  3. /5.2 Radioactivity

484 exam-style questions on CIE IGCSE Physics 5.2 Radioactivity, covering 5.2.1 Background radiation and measuring count rate, 5.2.2a Alpha, beta and gamma emission, 5.2.2b Deflection and ionising effects of nuclear radiation, 5.2.3a Radioactive decay, 5.2.3b Effects of decay on the nucleus and decay equations, 5.2.4a Half-life, 5.2.4b Choosing isotopes for applications, and 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.

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