Physics 0625 · IGCSE · Radioactivity

Radioactivity — practice question

The graph illustrates the radioactive decay curve for a substance. Determine 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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