Neco Model Questions Vol1 2023 Physics Question 49
Practice objective / multiple choice question 49 from the 2023 Neco Model Questions Vol1 Physics examination.
A sample contains \(2.0\times10^{20}\) atoms of a radioactive isotope that decays by \(\alpha\)-emission with a half‑life of \(4.5\times10^{3}\) years. Each decay releases \(5.0\ \text{MeV}\) of energy. Calculate the total energy (in joules, to two significant figures) released by the sample during the first \(10\,000\) years of decay.
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About This Question
This is Neco Model Questions Vol1 2023 Physics Question 49. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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