The barometric pressure and height on the earth are ${10}^5 \mathrm{Pa}$ and $760 \mathrm{mm}$ respectively. If it is taken to moon, then barometric height will be :-

A body floats in a liquid contained in a beaker. The whole system is shown in figure falling under gravity. The upthrust on the body due to liquid is :-

A body of volume $100 \mathrm{cc}$ is immersed completely in water contained in a jar. The weight of water and jar before immersion of the body was $700 \mathrm{g} \mathrm{wt}$. After immersion, the weight of water and jar will be

An object of volume $V$ is submerged in a liquid of density $\rho$. It has a flat bottom of area $A$ which is at a depth of $H$ in the liquid, and a dome shaped top. Find the total force of liquid acting on the top of the object.

There are three different liquids, with densities ${\rho }_1,{\rho }_2$ and ${\rho }_3$ in a U-shaped container as shown in the picture. The lengths shown are $H_1=15 \mathrm{cm}$ and $H_2=10 \mathrm{cm}$. Which of the following equations gives the correct relation between the densities of the fluids in the container?