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Uses and hazards

Uses and hazards

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Question 10

Two workers in a nuclear medicine facility are exposed to different radiation hazards:

  • Worker 1 stands in the path of a collimated beam of γ \gamma\,γ radiation from a sealed cobalt-60 source for 5 minutes. The beam is then switched off.
  • Worker 2 accidentally inhales a small amount of dust containing a gaseous β−\beta^-β− emitting isotope.

Which option correctly describes the status of each worker immediately after these events have occurred?

A

Worker 1: Neither contaminated nor irradiated; Worker 2: Both contaminated and irradiated

B

Worker 1: Irradiated only; Worker 2: Contaminated only

C

Worker 1: Irradiated only; Worker 2: Both contaminated and irradiated

D

Worker 1: Neither contaminated nor irradiated; Worker 2: Contaminated only

Markscheme

Uses and hazards Questions

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

13 exam-style questions on OCR GCSE Physics Uses and hazards. Each one has a worked solution and a mark scheme showing where the marks go.

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