Surface Tension (you know???) water drops on glass surface when a drop of water is placed on the surface of cleaned glass,then the water spread as a thin film on glass surface. But when a drop of mercury is placed then it forms a small SPHERE. Similarly if there is greece on glass surface then water drop will also form a tiny sphere.WHY????? mercury drop on glass surface Now the conclusion comes out that "the behavior of liquids is not affected only by the GRAVITATIONAL FORCE but there is another factor called surface tension. If a drop is of negligible weight then it has perfect spherical shape. For examples: rain drops, soap bubbles, etc. We should know that--------- "For a given volume a sphere has minimum surface area" Hence, it is the tendency of free surface to shrink to it's minimum surface area. How to define the ...
We will tell about all fundas of secrets of universe and "physics in everyday life" so that you could be smart, Every type of suggestion you can get here, We will help you in your every situation and problems. Believe us we'll never disappoint you.........................thank you.