A uniformly tapering vessel of height h whose lower and upper radii are r and R is completely filled with a liquid of density `rho` The force that acts on the base of the vessel due of the liquid is

Explanation

Ther pressure due to liquid on the base of vessel is `P = h rho g`
Base area of vessel, `A=pi r^(2)`
force on the base of vessel,
`F= PA = h rho g xx pi r^(2)`.