H2P-560
Activity and decay constant
H2 Physics · JC 2 · Easy · Activity and decay constant
A radioactive sample has an initial activity of 6400 Bq. After 30 minutes, its activity has fallen to 800 Bq. Assuming exponential decay, what is the half-life of the sample?
- 10 min
- 7.5 min
- 15 min
- 5 min
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