A research reactor, after going critical for the first time, operates at a power level of 100W for 4 hours.

A research reactor, after going critical for the first time, operates at a power level of 100W for 4 hours. How much fission product activity in Ci does the reactor contain at the following times after shutdown of the reactor?a. 1 hourb. 8 hoursc. 7 daysd. 30 days