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5.2.4a Half-life

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Question 61

The half-life of a radioactive isotope is 600 years. How long will it take until only 18\displaystyle \frac{1}{8}81​ of this isotope remains undecayed?

A

600 years

B

1200 years

C

1800 years

D

2400 years

Markscheme

5.2.4a Half-life Questions

  1. IGCSE
  2. /Physics
  3. /5.2.4a Half-life

144 exam-style questions on CIE IGCSE Physics 5.2.4a Half-life. Each one has a worked solution and a mark scheme showing where the marks go.

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