The activity of a radioactive sample is measured as 9750 counts (minute) –1 at t = 0 and…

Physics · JEE Main · NTA Exams — Atoms and Nuclei

1. 0.922 min ^–1
2. 0.691 min^–1
3. 0.461 min^–1
4. 0.230 min^–1

Answer

(C) 0.461 min –1

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