Mechanical Properties of Fluids Set 2

The surface energy of a liquid drop is . It is sprayed into 1000 equal droplets. Then its surface energy becomes

The working of an atomizer depends upon

An L-shaped tube with a small orifice is held in a water stream as shown in fig. The upper end of the tube is above the surface of water. What will be the height of the jet of water coming from the orifice? Velocity of water stream is

Work done forming a liquid drop of radius R is and that of radius . The ratio of work done is

Two bodies are in equilibrium when suspended in water from the arms of a balance. The mass of one body is and its density . If the mass of the other is , its density in is

Water stands at level in the arrangement shown in the figure. What will happen if a jet of air is gently blown into the horizontal tube in the direction shown in the figure?

Streamline flow is more likely for liquid with

A sphere of mass and radius is dropped in a liquid, then terminal velocity of sphere is proportional to

The diagram shows a cup of tea seen from above. The tea has been stirred and is now rotating without turbulence. A graph showing the speed with which the liquid is crossing points at a distance from along a radius would look like

Water flowing out of the mouth of a tap and falling vertically in streamline flow forms a tapering column, the area of cross-section of the liquid column decreases as it moves down. Which of the following is the most accurate explanation for this?