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What does the half-life of a radioactive source measure?
A
Radioactive waste with a long half-life is difficult to store because it remains a hazard far into the future.
B
It gives out intense radiation at first.
C
No. It means lower activity at any moment, but a hazard lasting much longer.
D
The time for its count-rate or activity to fall to half its starting value.
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4.3.2 Different half-lives of radioactive isotopes Flashcards
18 flashcards on AQA GCSE Physics 4.3.2 Different half-lives of radioactive isotopes: the key terms, definitions and equations you need to recall for Paper 1 and Paper 2.