Class 11 Physics Mechanics Mechanical Properties of Fluids



(A) The surface tension may be assumed to be a result of force between dipoles which oppose penetration of the liquid.
(B) The surface tension is a result of cohesive force which is mechanical, not electrical.
(a)
both A and B are correct
(b)
A is correct but B is wrong
(c)
A is wrong but B is correct
(d)
both A and B are wrong.
Correct answer: (b) 
Solution: Surface tension is exposed, for example, any time an object or insect that is denser than water is able to float or run along the water surface. So we may be assumed that surface tension will be a result of force between dipoles which oppose penetration of the liquid.
The surface tension is a result of both cohesive force and adhesive force.

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Similar topics
mechanical properties of fluids
laws of motion
oscillations
systems of particles and rotational motion
energy and power
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mechanical properties of fluids
laws of motion
oscillations
systems of particles and rotational motion
energy and power


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