Mechanical Prop...

A tank $$5\ m$$ high is half filled with water and then is filled to the top with oil of density $$0.85\ g/cm^ {2}$$. The pressure at the bottom of the tank, due to these liquids, is

For the arrangement shown in the figure, the force at the bottom of the vessel is

When a venturimeter is used in an inclined position, it will show

An ideal fluid is flowing in steady state from section A to B through a pipe in vertical plane as shown. Select incorrect statement. q

The ratio of forces exerted by the larger piston to the smaller piston is 

Two small drops of mercury, each of radius $$R$$, coalesce to form a single large drop. The ratio of the total surface energies before and after the change is:-

If pressure at half the depth of a lake is equal to $$\dfrac{2}{3}rd$$ of the pressure at the bottom of the lake. Then what is the depth of the lake 

A solid sphere of density $$\eta (>1)$$ times lighter than water is suspended in a water tank by a string tied to its base as shown in fig. If the mass of the sphere is m then the tension in the string is given by 

Statement I : in Steady flow, stream lines must remain parallel and equally spaced.
Statement II : In a steady flow, the pattern of stream lines does not change with time.

The height of water level in a tank is 'H'.  The horizontal range of water straem coming out of hole at a depth of H/4, from upper water level will be