A boat carrying steel balls is floating on the surface of the water in a tank. If the balls are thrown into the tank one by one, then, how will it affect the level of water?

A siphon in use is demonstrated in the following figure. The density of the liquid flowing in siphon is $1.5 \mathrm{gm} {\mathrm{cc}}^{-1}$. The pressure difference between the points $P$ and $S$ will be

Figure here shows, the vertical cross-section of a vessel filled with a liquid of density $\rho$. The normal thrust per unit area on the walls of the vessel at point$P,$ as shown, will be

Two vessels$A$ and$B$ of different shapes have the same base area and are filled with water up to the same height $h$ (see figure). The force exerted by water on the base is $F_{\mathrm{A}}$ for vessel $A$and$F_{\mathrm{B}}$ for vessel $B.$ The respective weights of the water filled in vessels are $W_{\mathrm{A}}$ and $W_{\mathrm{B}}$. Then