Questions in Mechanical Properties of Fluids

Select	Question
	If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is
	A soap bubble assumes a spherical surface. Which of the following statement is wrong
	If two soap bubbles of different radii are in communication with each other
	The surface tension of soap solution is $25 imes {{10}^{-3}}\,N{{m}^{-1}}$. The excess pressure inside a soap bubble of diameter 1 cm is
	When two soap bubbles of radius ${{r}_{1}}$and ${{r}_{2}}$ $({{r}_{2}}>{{r}_{1}})$ coalesce, the radius of curvature of common surface is
	The excess pressure due to surface tension in a spherical liquid drop of radius r is directly proportional to
	A long cylindrical glass vessel has a small hole of radius $r$ at its bottom. The depth to which the vessel can be lowered vertically in the deep water bath (surface tension $T$) without any water entering inside is
	If the surface tension of a soap solution is 0.03 MKS units, then the excess of pressure inside a soap bubble of diameter 6 mm over the atmospheric pressure will be
	The excess of pressure inside a soap bubble than that of the outer pressure is
	The pressure of air in a soap bubble of 0.7cm diameter is 8 mm of water above the pressure outside. The surface tension of the soap solution is