Sometimes a radioactive nucleus decays into a nucleus which inself is radioactive . An example is : `""^38"Sulphur" underset"=2.48 h"overset"half-life"to ""^38 Cl underset"=0.62 h"overset"half-life"to ""^38 Ar` (stable)
Assume that we start with 1000 `""^38S` nuclei at time t=0 . The number of `""^38Cl` is of count zero at t=0 and will again be zero at `t=oo` . At what value of t, would the number of counts be a maximum ?

Options

A. 1.65 h
B. 2.62 h
C. 3.24 h
D. 3.95 h

Answer

a