Calculate the height of a water column which will exert on its base the same pressure as the 70 cm column of mercury. Density of mercury is 13.6 g/cm^3.
(continuing with cgs system data)
Pressure of mercury column is hdg = 70 x 13.6 x g ……..(1)
let the height of water column = H cm
Pressure of water column = H x 1 x g …………..(2)
As per problem statement
H g = 70 x 13.6 x g
H = 70 x 13.6 = 952 cm = 9.52 m