2) Explain the phenomenon of surface tension on the basis of molecular theory.
3) Define surface tension Explain the effect of impurity on surface tension.
4) What is surface energy? Obtain the relation between surface tension and surface energy.
5) Define angle of contact. State it for characteristics.
6) Define Surface tension. State its SI unit and dimension.
7) Derive an expression for height of liquid column when a capillary is vertically dipped in a liquid.
8) Draw a neat diagram for the rise of liquid in a capillary tube showing the components of a surface tension T.
9) What is capillarity? Give any two applications of capillarity.
10) Explain the formation of concave and convex surface liquid on the basis of molecular forces.
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