In a reservoir of a well type manometer, the sealing liquid is mercury having a weight density of 132.5 KN/m^3. If the area of the well is 0.02m^2 and that of the tube is 40mm^2. Calculate the height of the measuring column if the applied differential pressure is 70KN/m^2. Relevant formulae: P1-P2 =ρ.m(g)(h)(a2/a1 + 1) Attempt at question. 70=132.5(9.81)(h)(0.00004/0.02 + 1) 70=1335.98664(h) h=0.05239573354m =52.39573354mm Set up is similar as shown below The answer provided is 527mm. I can't spot any mistakes in my calculations too.