A cylindrical vessel of base radius R and height H has a narrow neck of height h and radius r at one end (see figure). The vessel is filled with water (density`rho_(w)`) and its neck is filled with immiscible oil (density `rho_(O)`). Then the pressure at

Options

A. M is `g(hrho_(0)+H rho_(w))`
B. N is `g(hrho_(0)+Hrho_(w))(r^(2))/(R^(2))`
C. M is g `Hrho_(w)`
D. `"N is g"(rho_(w)HR^(2)+rho_(0)hr^(2))/(R^(2)+r^(2))`

Answer

A