A very light rigid rod with a length of 0.523 m extends straight out from one end of a meter stick. The combination is suspended from a pivot at the upper end of the rod as shown in the following figure. The combination is then pulled out by a small angle and released.
(a) Determine the period of oscillation of the system.
(b) By what percentage does the period differ from the period of a simple pendulum 1.023 m long?