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5.2.4a Half-life

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Question 22

A radioactive substance has a half-life of 3 days. At the beginning of an investigation, the substance emits 4000 α\alphaα-particles per second.

How many α\alphaα-particles will it emit per second after 12 days?

A

250

B

500

C

1000

D

2000

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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