Physics 0625 · IGCSE · Radioactivity

Radioactivity — practice question

Three sources of background radiation are given. 1. cosmic rays 2. medical X-rays 3. radioactive emissions from radon gas from the ground Which of these sources occur naturally?

  • A1 and 3 only
  • B1 only
  • C2 and 3 only
  • D2 only

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