General Knowledge - Basic General Knowledge - Discussion


Free surface of a liquid behaves like a sheet and tends to contract to the smallest possible area due to the

[A]. force of adhesion
[B]. force of friction
[C]. centrifugal force
[D]. force of cohesion

Answer: Option D


No answer description available for this question.

Sdfa said: (Dec 9, 2010)  
Due to force of cohesion.

Charles said: (Sep 22, 2011)  
More correct answer to the question is Surface Tension.

Amani said: (Nov 18, 2011)  
Cohesion means force of attraction between same molecules of a liquid. So, the free surface of a liquid behaves like a sheet and tends to contract to the smallest area.

Surface Tension is also one of the answer.

Vidhuran said: (Jan 28, 2012)  
Thanks Amani.

Arasu said: (Mar 23, 2012)  
Cohesive force takes place only in high density fluids like mercury. Only surface tension could cause this effect.

Yashwant Kumar said: (Apr 2, 2012)  
It would be better to say that it is due to surface tension.

Kaushal said: (May 24, 2012)  
It is objectionable to call it surface tension because cohesion & adhesion are types of surface tension.
So to be more specific, cohesion is the right answer.

Shahaji said: (Dec 16, 2012)  
The correct answer is surface tension. And both forces are related with it, so cohesion is more correct than adhesive force.

Nikita Kamini said: (Apr 2, 2013)  
Surface tension is one of them in which force of attraction bw molecules increases.

Ramesh Kolluri. said: (Apr 2, 2013)  
The correct answer is cohesion that means the same kind of particle are attract to each other that leads to they are adjust in a minimum possible area. That also called as surface tension.

Kajal Kumari said: (Jun 12, 2013)  
Surface tension is borne out of the cohesion forces existing between the similar molecules of the liquid. It is nothing but the consequence of cohesion forces. Hence the answer is correct.

Gandu said: (Jul 5, 2013)  
Cohesive force is partially responsible for this but the major role for this is played by surface tension. Since surface tension is not in the options. So, the right answer will be cohesive force.

Harish said: (Sep 11, 2013)  
Cohesive force is nothing but attraction of liquid molecules. So it causes smallest possible area of the liquid.

Sachin Patil said: (Dec 21, 2013)  
Cohesive force - it is a type of surface tension.

Saurabh Joshi said: (Jul 26, 2014)  
Surface tension might be a better option than cohesive-force.

Rakesh Zverma said: (Sep 3, 2016)  
What is adhesion?

Abirame said: (May 12, 2017)  
What is mean by surface tension?

Y C Pathak said: (Dec 2, 2017)  
What is the difference between Cohesive and adhesive?

Y C Pathak said: (Dec 2, 2017)  
Adhesion is the tendency of dissimilar particles or surfaces to cling to one another (cohesion refers to the tendency of similar or identical particles/surfaces to cling to one another). The forces that cause adhesion and cohesion can be divided into several types. The intermolecular forces responsible for the function of various kinds of stickers and sticky tape fall into the categories of chemical adhesion, dispersive adhesion, and diffusive adhesion. In addition to the cumulative magnitudes of these intermolecular forces, there are also certain emergent mechanical effects.

Mukesh Chauhan said: (Jan 31, 2020)  
It is Surface tension.

Ruheel said: (Apr 14, 2020)  
Free surface of a liquid behaves like a sheet and tends to contract to the smallest possible area due to the force of cohesion. The force of cohesion is defined as the force of attraction between molecules of the same substance.

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