Plot a graph of the (√ ) square root of length ( vs ) the time for one oscillation (T). Square root all the length first on the calculator and get the values B4 u plot the graph.
One the X axis put the values of for time and on the Y axis put the values of √ square root of length.

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg