4. Define surface tension. Briefly explain any two illustrations of
surface tension
March April 2014 (Common)]
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Surface tension, property of a liquid surface displayed by its acting as if it were a stretched elastic membrane. This phenomenon can be observed in the nearly spherical shape of small drops of liquids and of soap bubbles. ... The razor blade is not floating: if pushed through the surface, it sinks through the water.
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the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.
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