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6.2 Uses and hazards

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Question 28
H

Four people are exposed to radioactive sources.

Which person is most at risk of damage to their body cells?

[1]
A

A person holding a sealed alpha source in a gloved hand

B

A person standing 5 m5\ \text{m}5 m from a sealed beta source

C

A person who has breathed in dust that emits alpha particles

D

A person standing behind thick lead shielding near a gamma source

Markscheme

6.2 Uses and hazards Questions

  1. GCSE
  2. /Physics
  3. /6.2 Uses and hazards

48 exam-style questions on OCR GCSE Physics 6.2 Uses and hazards, covering 6.2.1 Contamination and irradiation, 6.2.2 Half-life and radiation hazards, 6.2.3 Medical uses of nuclear radiation, 6.2.4 Nuclear fission and chain reactions, and 6.2.5 Nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.

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