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AP EAMCET2007PhysicsMechanical Properties of Fluids

A liquid does not wet the solid surface if the angle of contact is

Options

  1. Azero
  2. Bequal to 45^
  3. Cequal to 90^
  4. Dgreater than 90^

Correct answer

D. greater than 90^

Step-by-step solution

A liquid does not wet the solid surface if the angle of contact is obtuse ie, greater than 90^ . In this case cohesive forces will be greater than adhesive forces and so, the liquid does not wet the surface of solid.

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