Physics 5054 · O Level · Half-life

Half-life — practice question

A tritium sample has a mass of $32\,\text{mg}$. The half-life of tritium is $12$ years. What mass of the tritium sample decays over $36$ years?

  • A$4.0\,\text{mg}$
  • B$8.0\,\text{mg}$
  • C$24\,\text{mg}$
  • D$28\,\text{mg}$

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