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Capillary Action

When the angl...

Question

When the angle of contact between a solid and a liquid is $90^{o}$ , then

A

Cohesive force > Adhesive force

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B

Cohesive force < Adhesive force

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C

Cohesive force = Adhesive force

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D

Cohesive force >> Adhesive force

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Solution

The correct option is C Cohesive force = Adhesive force
when the angle of contact b/w a solid and a liquid is $90^{0}$ then it shows that they are at equilibrium & cohesive forces are equal to the adhesive forces.

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