Question

20 T2 (s) 4.54 2 120 Periods (s) T (s) L (cm) 5 120 I.a9 39 g0 35 29 3o. 86 25.14 17.93 100 6o ㄐ〇 20 0 1-5y .24 900 3.13 2.37 I-S9 8 1

Answer 1

Both the graphs has been plotted using origin

Graph 1: T versus L

Black colour shows the actual data, Red line shows the linear fit of the data.

Both the graphs has been plotted using origin Graph 1: T versus L Black colour shows the actual data, Red line shows the linear fit of the data. Yes. the graph is a straight line. It shows that the T is directly proportional to L. By linear fitting of the data, T = 0.01621L + 0.39714 Where. 0.01621 s/m is the slope of the line and 0.39714 s is the intercept. Graph 2: T^2 versus L YYes, Regression line is very much close to the data points. Slope of the graph = 0.03832 s^2/ cm Percent Difference: Percent = 0.03832 - 0.040/0.040 times 100 = 4.2

Yes. the graph is a straight line. It shows that the T is directly proportional to L.

By linear fitting of the data,

T= 0.01621L+0.39714

Where. 0.01621 s/m is the slope of the line and 0.39714 s is the intercept.

Graph 2: T² versus L

YYes, Regression line is very much close to the data points.

Slope of the graph= 0.03832 s²/ cm

Percent Difference:

$Percent=\frac{0. 03832-0.040}{0.040} \times 100= 4.2$