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6.5 Uses and dangers of radioactivity

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Question 33
H

A worker is exposed to a constant dose rate of 24 μSv24\ \mu\mathrm{Sv}24 μSv per hour for 15 minutes during each procedure. A new screen reduces the dose rate to one-quarter of this value. The worker performs eight procedures behind the screen. What total dose is received?

[1]
A

192 μSv192\ \mu\mathrm{Sv}192 μSv

B

6 μSv6\ \mu\mathrm{Sv}6 μSv

C

12 μSv12\ \mu\mathrm{Sv}12 μSv

D

48 μSv48\ \mu\mathrm{Sv}48 μSv

Markscheme

6.5 Uses and dangers of radioactivity Questions

  1. GCSE
  2. /Physics
  3. /6.5 Uses and dangers of radioactivity

97 exam-style questions on Edexcel GCSE Physics 6.5 Uses and dangers of radioactivity, covering 6.5.1 Uses of radioactivity, 6.5.2 Dangers of ionising radiation and precautions, 6.5.3 Half-life and radiation dangers, 6.5.4 Safety precautions for radiation exposure, and 6.5.5 Contamination and irradiation. Each one has a worked solution and a mark scheme showing where the marks go.

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