Table 1: Data required for the questions. (All the values are given at normal conditions, "1 atm and 20C.) \begin{tabular}{|l|c|c|} \hline system & contact angle, degrees & Interfacial tension, mmN/m \\ \hline Air-water & 0 & 72 \\ Oil-water & 30 & 48 \\ \hline \end{tabular} 2. (70 points) Estimate the capillary rise over the water level in the given configuration. The required data is given in Table 1. The experiments are conducted at normal conditions ("1 atm and 20C "). The density of the oil and water at normal conditions are 875kg/m3 and 1000kg/m3, respectively. Figure shows a water oil system. Radius of the tube is 0.5mm. Also write down the necessary condition for the water level to be over oil level