The pressure inside a liquid of density $\rho$ at a depth $h$ is :

Q. The expression for the pressure at a point inside a liquid (Given liquid density $=\rho$, height of liquid column $h$ and acceleration due to gravity $=g$).

Q. The pressure $P_1$ at the top of a dam and $P_2$ at a depth $h$ from the top inside water (density $\rho$) are related as

Q. Complete the following sentence:
Pressure at a depth $h$ in a liquid of density $\rho$ is ..................

Q. A right circular cone of density $\rho ,$ floats just immersed with its vertex downwards, in a vessel containing two liquids of densities ${\sigma }_1$ and ${\sigma }_2$ respectively. The plane of separation of the two liquids cuts off from the axis of the cone at a fraction $z$ (taken from vertex) of its length. Find $z$.