$$

Questions for Discussion:

Plot the calibration curve $($using $logQ$ versus $logH)$ of the $V-$notch, and compute the coefficient of discharge $C_d.$

Compare the results with those theoretical values published in textbooks $($you can check those values from relevant textbooks or websites, but provide the data source in your report$).$

How would you interpret results which, when plotted logarithmically$,$ fall on a line which is not straight but slightly curved?

What are the effects of a change in the V$-$notch angle on the discharge equation and the accuracy of flow measurement?

Based on above results, have you any suggestions for improving the apparatus?