Physics 0625 · IGCSE · Radioactivity

Radioactivity — practice question

The graph presents the radioactive decay curve for a substance. State the half-life of this substance.

  • A$0.5\,\text{years}$
  • B$5\,\text{years}$
  • C$15\,\text{years}$
  • D$30\,\text{years}$

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