For a radioactive material, is activity A and rate of change of its activity R are defined as A=(dN)/(dt) and R=(dA)/(dt). Two radioactive sources P (mean life tau ) Q (mean life 2tau ) have the same activity at t = 0. Their rates of change of activities at t=2tau are R_(P) and R_(0) respectively. if (R_(p))/(R_(0))=(n)/(e), then the value of n is

For a radioactive material, is activity A and rate of change of its ac

1.	For a radioactive material, is activity A and rate of change of its activity R are defined as A=(dN)/(dt) and R=(dA)/(dt). Two radioactive sources P (mean life tau ) Q (mean life 2tau ) have the same activity at t = 0. Their rates of change of activities at t=2tau are R_(P) and R_(0) respectively. if (R_(p))/(R_(0))=(n)/(e), then the value of n is
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