An empty container has a circular hole of radius r at its bottom. The container is pused into water very slowly as shown. To what depth the lower surface of container (from surface of water) can be pushed into water such that water does not flow into the container?

An empty container has a circular hole of radius r at its bottom. The container is pushed into water very slowly as shown. To what depth the loweer surface of container (from surface of water) can be pushed into water such that water does not flow into the container ? (Surface tension of water = T , density of water = rho )

Surface water contains

Surface water contains.

Surface water contains.

Hard water does not contain :-