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?

Answer

B

Explanation

Applying pressure equation between 1 and 2,
`p_(0)+rho gh-(2T)/(r )=p_(0)`
`implies h=(2T)/(rrho g)`.