Gce Model Questions Vol1 2024 Physics Question 1
Practice objective / multiple choice question 1 from the 2024 Gce Model Questions Vol1 Physics examination.
A sample contains \(1.0\times10^{6}\) atoms of a radioactive isotope X‑60. X‑60 decays by \(\beta^{-}\) emission to Y‑60 with a half‑life of \(2.5\ \text{min}\) and releases \(1.2\ \text{MeV}\) per decay. The daughter Y‑60 subsequently decays by \(\alpha\) emission to stable Z‑56 with a half‑life of \(5\ \text{min}\) and releases \(4.5\ \text{MeV}\) per decay. Assuming the decays occur sequentially, calculate the total energy released (in joules) from all decays that have taken place after exactly \(10\ \text{min}\).
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This is Gce Model Questions Vol1 2024 Physics Question 1. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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