The rate of decay of a radioactive sampel is given by `R_(1)` at time `t_(1)` and `R_(2)` at a later
Channel: Doubtnut
Date: 29/03/2020

The rate of decay of a radioactive sampel is given by `R_(1)` at time `t_(1)` and `R_(2)` at a later time. `t_(2)`. The mean life of this radioactive sample is: