Surface tension arises out of a) repulsive forces b) cohesive forces c) electrostatic attraction d) friction
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It is the cohesive force due to which the surface tension arises.
The cohesive force acts between the molecules of the same substance and this is how they attract each other.
It is due to this fact that the surface tension arises and it is the reason behind the same.
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Surface tension arises out of cohesive force.
Option (b).
Explanation:
- The cohesive force acts 'between the molecules' of the substance and this is what keeps the substances 'attracted towards each other'.
- This cohesive force causes a tendency in liquids to keep them intact.
- In the case of rain falls droplets, rather than separate molecules, the water has strong cohesion which keeps them together making droplets.
- Cohesive forces are 'attractive forces' between 'similar molecules'.
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