Physics 0625 · IGCSE · Radioactivity

Radioactivity — practice question

The graph illustrates the activity of a radioactive source over a span of time. What is the half-life of the source?

  • A1.0 minute
  • B2.0 minutes
  • C2.5 minutes
  • D4.0 minutes

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI