One reactor produces a maximum thermal power of 300 MWe using a total of 40,000 fuel
rods. Find the power density of this reactor if the fuel rod has the following shape
(a) A cylinder with the diameter of 1 cm and the length of 3.6 m. (10)
(b) A square with the dimension of 1×1 cm2 and the length of 3.6 m.