Q95 / 180 · NEET 2020 (Phase 2) · Physics

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

  • A
    equal to 45°
  • B
    equal to 60°
  • Correct answer
    C
    greater than 90°
  • D
    zero

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.

Hence, the correct answer is option: 'C'.

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