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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > The activity of a sample is R1 at time t1 and R2 at time t2. The mean life of the sample is T. What is the number of nuclei that have disintegrated in time interval (t1 – t2) ?

The activity of a sample is R1 at time t1 and R2 at time t2. The mean life of the sample is T. What is the number of nuclei that have disintegrated in time interval (t1 – t2) ?

The activity of a sample is R1 at time t1 and R2 at time t2. The mean life of the sample is T. What is the number of nuclei that have disintegrated in time interval (t1 - t2) ?