Surface Tension of Fluid

Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in al...

A steel needle or a razor blade can float on water if placed gently due to surface tension, which arises at the interface between a liquid and a gas or two liquids that do not mix.

The surface tension makes the liquid surface behave like a stretched elastic membrane, thereby supporting the object.

Surface tension results from cohes...