A very light rigid rod of length 0.600 m extends straight out from one end of a metre long rod of mass M. The combination is suspended from a pivot at the upper end of the light rigid rod as shown in the figure. The system is moved a small angle from the equilibrium position and released.
(a) Determine the period of oscillation of the system,
(b) By what percentage does the period differ from a simple pendulum 1.10 m long?