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Question: Answered & Verified by Expert
A liquid does not wet the sides of a solid, if the angle of contact is
PhysicsMechanical Properties of FluidsJEE Main
Options:
  • A Zero
  • B Obtuse (More than $90^{\circ}$ )
  • C Acute (Less than $90^{\circ}$ )
  • D $90^{\circ}$
Solution:
2500 Upvotes Verified Answer
The correct answer is: Obtuse (More than $90^{\circ}$ )
When the contact angle is obtuse (more then $90^{\circ}$ ), liquid beads up and does not easily penetrate the solid to wet it. So the correct answer is ' $B$ '.

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