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AP Physics 2
15.7 Fission, Fusion, and Nuclear Decay
IntermediateMCQGraphicalMathematicalProportional Analysis24.4k
Activity versus time for the radioactive sample.
Activity versus time for the radioactive sample.
A detector measures the activity of a freshly prepared sample containing an unknown radioisotope as a function of time. The measured activity \(A\) in becquerels (\(\text{Bq}\)) over an \(18\text{-hour}\) period is displayed in the graph. Based on the graph, what percentage of the original sample's radioactive nuclei has decayed after \(24\text{ hours}\)?

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