7. Plot graph of T²/s² against l/cm 8. Calculate the gradient of graph. TABLE OF RESULTS 4/cm 100 90 80 70 60 50 40 Average #20 t₂0 swings/s too swings /s Ascontests? Swings/s 42.69 40.06 41.38 36.65 36-16 32.56 31-10 27.22 24 27 36 815 35 62 32.56 30.95 27.16 24.63 T/s 27.19 24.45 2.075 1.84 1.80 36.73 35-39 32.56 1.63 31.03 1.55 1.36 1.22 T²/t² 4.28 3.39 3.24 2.66 2.40 1.85 1.49
