In a thermal reactor the mean lifetime of one generation of thermal neutrons is = 0.10 s.

In a thermal reactor the mean lifetime of one generation of thermal neutrons is τ = 0.10 s. Assuming the multiplication constant to be equal to k = 1.010, find:
(a) How many times the number of neutrons in the reactor, and consequently its power, will increase over t = 1.0 min;
(b) The period T of the reactor, i.e. the time period over which its power increases e-fold.