Are you know what is Surface Tension and how we use it in our day to day life?

Surface tension is the property of liquids. 

       Let’s we see what is the definition of surface tension,

Surface Tension :- (definition from Physics)

   “The force per unit length acting at right angles to an imaginary line drawn on the surface of liquid is called Surface tension.”

         

Formula of surface tension :-   T  =  F/ l

SI unit of Surface tension is N/m and in CGS dyne/cm.

Dimensions :- [L⁰M¹T^-2]

 

Uses (applications) of Surface tension in our day to day life :-

1)  You know why Tooth paste spreads more freely in our mouth?

 It is because it contains small amount of soap which   reduces surface tension.

2)  Why we add detergent in water?

 If detergent is added in water, the surface tension of resulting detergent solution becomes less than pure water. This increases area of contact of and the cleaning ability of soap solution.

3)  Mosquito eggs floats on the surface of the water due to surface tension of water. When Kerosene is sprayed on the surface of the water, the surface tension of water is lowered and eggs go down to inside the water and the breeding of mosquito eggs stops.