An open tank contains mercury up to a depth of 3 m and above of water up to a depth of 2 m and above the water an oil of specific gravity 0.92 for a depth of 1.2 m. Find the intensity of pressure (a)...

An open tank contains mercury up to a depth of 3 m and above of water up to a depth of 2 m and above the water an oil of specific gravity 0.92 for a depth of 1.2 m. Find the intensity of pressure

(a) at the interface of oil and water

(b) at the interface of water and mercury,

(c) at the bottom of the tank.