For a constant hydraulic stress on an object, the fractional change in the object’s volume $(\Delta V/V)$ and its bulk modulus $(B)$ are related as
$\frac{{\Delta V}}{V} \propto B$
$\frac{{\Delta V}}{V} \propto \frac{1}{B}$
$\frac{{\Delta V}}{V} \propto B^2$
$\frac{{\Delta V}}{V} \propto B^{-2}$
A .......... $m/s$ speed the velocity head of water is equal to pressure head of $40\, cm$ of $Hg$ .
A lead shot of $1\, mm$ diameter falls through a long column of glycerine. The variation of its velocity $v$ with distance covered is represented by
Two drops of equal radius are falling through air with a steady velocity of $5\,cm/s$. If the two drops coalesce, then its terminal velocity will be
Two small drops of mercury, each of radius $R$ coalesce to form a single large drop. The radio of the total surface energies before and after the change is
The velocity of small ball of mass $m$ and density $\rho $ when dropped in a container filled with glycerine of density $\sigma $ becomes constant after sometime. The viscous force acting on the ball in the final stage is