Teaching MPPSC Assistant Professor Mock Test Series 2025 Physics Nuclear Physics Radioactivity

What is the mean life time \((\overline{\mathrm{T}})\) of a radioactive substance of which the decay constant (2) is 4.28 × 10^-4 per year?

1

584 years

2

1168 years

3

1619 years

4

2336 years

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