Experiment M1 The simple pendulum (1) Apparatus Pendulum bob, clamp, retort stand, thread, stop watch, metre rule. Procedure Set up a pendulum of length / = 100 cm. Find the time t, for 50 complete oscillations. Repeat the experiment for /= 80, 50 and 40 cm. Tabulate your results as shown below. /(cm) Time for 50 oscillations t,(s) (s) mean t (s) Questions a) Plot a graph of / against 72 and determine the slope of the graph. b) Given that g 4x² deduce the value of g. 1= Period 72 (s) T (s) T²​