91 . NO cohesive force does work here
2 Force of Surface tension may bind its wings (adhesion also )
3. P =P° +4T/r
now r inc means P dec ,hence avg separation dec
q1 when a glass capilliary tube is dipped at one end of the water .water rises in the tube .the gravitational potential energy is increased .is it a violation of conservation of energy?
q2 if a mosquito is dipped in water n released it is not able to fly till its dry again .explain
q3 wen the size of a soap bubble is increased by pushing more air in it surface area increases does this mean average separation b/w molecules increases
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