Neco Model Questions Vol1 2022 Physics Question 6
Practice objective / multiple choice question 6 from the 2022 Neco Model Questions Vol1 Physics examination.
An isotope X decays to Y with half‑life 20 s, and Y decays to a stable nuclide with half‑life 80 s. Initially only X is present, (N_0 = 2.0\times10^{6}\) nuclei. At what time after the start does the number of Y nuclei reach its maximum value? Give your answer in seconds (to two significant figures).
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About This Question
This is Neco Model Questions Vol1 2022 Physics Question 6. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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