Three vessels having different shapes are shown in Fig , having the same base area and the same weight when empty . The vessels are filled with mercury to the same level . (Neglect the effect of the atmosphere) .

(a) Find which vessel has the maximum and which vessel has the minimum pressure at the bottom , or is the pressure same ?

Explanation

The mercury at the bottom of each vessel is at the same depth d below the surface . Neglecting the pressure at the surface the pressures at the bottom must be equal , hence
`p = rho g d`