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5.2 Radioactivity

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Question 339

An industrial technician needs to work near a radioactive source that emits γ\gammaγ-radiation.

Which of the following actions will not reduce the radiation dose received by the technician?

A

placing a thick concrete barrier between the technician and the source

B

keeping the source under extremely high pressure

C

maximizing the distance between the technician and the source

D

minimizing the duration of time the technician spends near 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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