Mean life of a radioactive sample is 100 ~s . Then, its half-life (in min) is

Step-by-step solution

Given, mean life of radioactive sample, =100 ~s = 100 60 ~min = 5 3 ~min We know that, aligned &=1.44 T_ 1 / 2 T_ 1 / 2 &= 1.44 = 5 / 3 1.44 = 5 3 1.44 =1.157 ~min & 1.155 ~min aligned