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Question
Mercury spread over glass surface forms spherical droplets because
Mercury spread over glass surface forms spherical droplets because
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Solution
The correct option is C force of adhesion < force of cohesion
Mercury has force of adhesion less than the force of cohesion and hence prefers to stick to itself rather than the glass surface. To achieve this, mercury takes the spherical shape to minimize its contact with the glass surface.
Mercury has force of adhesion less than the force of cohesion and hence prefers to stick to itself rather than the glass surface. To achieve this, mercury takes the spherical shape to minimize its contact with the glass surface.
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