Question

A cylindrical vessel of cross sectional area a contains water upto a height h.there is a hole in the bottom of radius

a.the time in which it will be emptied is

Answer 1

I think vessel has cross so it can be any thing

Answer 2

Answer:

The vessels are filled with the liquid upto same level. Which vessel will have highest pressure at the bottom? yes the 4th one is the answer but why? All vessels will have same pressure Because :-) (Pressure = dgh) and pressure depends on the height.