Mechanical Prop...

The height of water in a capillary tube of radius $$2 cm$$ is $$4 cm$$. What should be the radius of capillary, if the water rises to $$8 cm$$ in tube? 

For tap water and clean glass, the angle of contact is

If every particle of fluid has irregular flow, then flow is said to be

Venturi relation is one of the applications of 

A liquid is kept in a glass vessel. If the liquid solid adhesive force between the liquid and the vessel is very weak as compared to the cohesive force in the liquid, then the shape of the liquid surface near the solid should be

Water and mercury are filled in two cylindrical vessels upto same height. Both vessels have a hole in the wall near the bottom. The velocity of water and mercury coming out of the holes are $$v_1$$ and $$v_2$$ respectively. Then :

When a capillary tube is immersed vertically in water the capillary rise is $$3 cm$$. if the same capillary tube is inclined at angle of $$60^o$$ to the vertical, the length of the water column in the capillary tube above that of the outside level is

Two capillary tubes of the same material but of different radii are dipped in a liquid. The heights to which the liquid rises in the two tubes are $$2.2 cm$$ and $$6.6 cm$$. The ratio of radii of the tubes will be

Water rises up to a height $$h_1$$ in a capillary tube of radius $$r$$. The mass of the water lifted in the capillary tube is $$M$$. If the radius of the capillary tube is doubled, the mass of water that will rise in the capillary tube will be 

If the terminal speed of a sphere of gold (density $$=19.5kg/m^{3}$$) is $$0.2m/s$$ in a viscous liquid (density $$=1.5kg/m^{3}$$), find the terminal speed of a sphere of silver (density $$=10.5kg/m^{3}$$) of the same size in the same liquid