Tag: properties of matter
Questions Related to properties of matter
A spherical water drop of radius $R$ is split up into $8$ equal droplets. If $T$ is the surface tension of water, then the work done in this process is-
A drop of oil is placed on the surface of water. Which of the following statement is correct?
One thousand small water droplets of equal size combine to form a big drop. The ratio of the final surface energy to the initial surface energy is: (Surface tension of water = 70 dyne/cm)
A metal plane having an area of $0.04\ m^{2}$ is placed on a horizontal wooden surface. Oil of coefficient of viscosity $2\ N/ s/m^{2}$ is introduced between the plate and the surface till the thickness of the oil layer is $0.5$ in. The horizontal force needed to drag the plate along the surface with a velocity of $5\ cm/s$ is
Two spherical soap bubbles of a radii $r _1$ and $r _2$ in vacuum coalesce under isothermal conditions. The resulting bubble has the radius $R$ such that
What is the change in surface energy, when a mercury drop of radius $R$ splits up into $1000$ droplets of radius $r$?
Potential energy of a molecule on the surface of a liquid is as compared to another molecule inside of the liquid is
Which of the following is associated with liquid only and not for the gases?
The property of fluid which enables it to resist tensile stress is known as
A wire 10 cm long is placed horizontally on the surface of water. It is gently pulled up with a force of $1.4 \times 10^{-2}$ N to keep it in equilibrium. The surface tension of water is