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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 14 - Nuclear Physics and Radioactivity > The activity of a sample of radioactive material is A1 at time t1 and A2 at time t2(t2 > t1). If its mean life is T, then

The activity of a sample of radioactive material is A1 at time t1 and A2 at time t2(t2 > t1). If its mean life is T, then

The activity of a sample of radioactive material is A1 at time t1 and A2 at time t2(t2 > t1). If its mean life is T then