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5.2.4a Half-life

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Question 46

A radioactive substance has a half-life of 5 days. At the beginning of an investigation, the substance emits 6400 $β\beta$ -particles per minute.

How many $β\beta$ -particles will it emit per minute after 15 days?

A

400

B

800

C

1600

D

3200

Markscheme

5.2.4a Half-life Questions

IGCSE
Physics
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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