Mechanical Properties of Fluids Set 3

By inserting a capillary tube upto a depth in water, the water rises to a height . If the lower end of the capillary tube is closed inside water and the capillary is taken out and closed end opened, to what height the water will remain in the tube, when ?

The rate of flow of liquid through an orifice of a tank does not depend upon

An incompressible fluid flows steadily through a cylindrical pipe which has radius at point and radius at further along the flow direction. If the velocity at point is , its velocity at point is

Air is streaming past a horizontal air plane wing such that its speed is over the upper surface and at the lower surface. If the density of air is , what will be the gross life on the wing? If the wing is long and has an average width of 2 m,

Two solid pieces, one of steel and the other of aluminum when immersed completely in water have equal weights. When the solid pieces are weighed in air

Two rain drops reach the earth with different terminal velocities having ratio 9:4. Then the ratio of their volume is

The excess pressure inside a spherical drop of water is four time that of another drop. Then their respective mass ratio is

The rate of flow of liquid through a capillary tube of radius is when the pressure difference across the two ends of the capillary is . If pressure is increased by 3 and radius is reduced to , then the rate of flow becomes

Density of ice is and that of water is . What will be the decrease in volume when a mass of ice melts

Water is flowing through a tube of non-uniform cross-section. Ratio of the radius at entry and exit end of the pipe is 3:2. Then the ratio of velocities at entry and exit of liquid is