Question

HOMEWORK
cylindrical
long
glass vessel has
small
hole of radius 'r' at its
bottom. depth of vessel can be Lowedred
vertically in deep
water bath
with surface tension = tension without
water
entering
inside it​

Answer 1

Answer:Water cannot penetrate till the hydrostatic pressure is greater than the excess of pressure that comes into play due to surface tension. at the limiting condition when water just about to penetrates, these two pressure should be equal. That is

Step-by-step explanation:hρg = 2T/r

where  h = depth up to which cylinder is immersed.

           ρ = density of water

            T = surface tension of water

              Hence h = 2T/(ρgr)