Physics · Surface Tension and Capillarity
On a clean glass plate, a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical. This is because:
- 1Cohesion of mercury is greater than its adhesion with glass✓
- 2Density of mercury is much greater than that of water
- 3Mercury is a liquid metal at room temperature
- 4Cohesion of water is greater than its adhesion with glass
Correct answer
Cohesion of mercury is greater than its adhesion with glass
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