A differential manometer is used to measure pressure difference between two fluid systems. Two parallel pipes carrying freshwater and seawater are connected to each other by a double u-tube differential manometer as shown in figure. Determine pressure difference between the two pipelines if h= 32cm. Also if the pressure difference between the pipes is doubled, what will be the difference in heights(h) of mercury?Take density of sea water at that location to be 1035kg/m3 and the specific gravity of the oil is 0.72. Assume all fluids are incompressible.

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