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5.2 Radioactivity

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Question 269

When a radioactive source is not in use in a laboratory, what is the safest way to store it to minimize exposure?

A

In a locked, lead-lined box inside a metal cupboard

B

Wrapped in aluminum foil on an open shelf

C

In a sealed glass bottle containing water on a bench

D

Under a fume cupboard with the extractor fan turned on

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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