Which one of the following is not a result of surface tension ?

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Q: 12 (NDA-I/2015)

Which one of the following is not a result of surface tension ?

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,14,16,2,9,5,14

keywords: 

{'surface tension': [0, 0, 2, 3], 'liquid': [0, 0, 0, 1], 'spherical drop': [0, 0, 0, 1], 'capillary rise': [0, 0, 0, 1], 'soap': [0, 0, 0, 3], 'detergent': [0, 0, 0, 1], 'rain': [7, 1, 2, 16], 'dirt': [0, 0, 2, 2], 'flow': [0, 0, 1, 0]}

The correct answer is option 4: Flow of a liquid.

Surface tension is the property of a liquid that allows it to resist external forces and minimize its surface area. It is caused by the attraction between the molecules of the liquid.

Option 1: A nearly spherical drop of rain is a result of surface tension. Surface tension creates a force that pulls the liquid molecules together, making the shape of a raindrop as close to a sphere as possible.

Option 2: Capillary rise is also a result of surface tension. When a thin tube (capillary tube) is placed in a liquid, the liquid rises in the tube due to the cohesive forces between the liquid molecules.

Option 3: The removal of dirt by soap or detergent is achieved through the action of surface tension. Soap or detergent molecules have a hydrophilic (water-loving) end and a hydrophobic (water-repelling) end. When soap or detergent is added to water, it reduces the surface tension of the water, allowing it to penetrate and remove dirt particles.

Option 4: Alert - The flow of a liquid is not a result of surface tension. The flow of a liquid is primarily influenced by gravity, pressure, and viscosity, rather than surface tension