Discussion :: Physics
- On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because
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A.
Mercury is a metal |
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B.
Density of mercury is greater than that of water |
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C.
Cohesion of mercury is greater than its adhesion with glass |
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D.
Cohesion of water is greater than its adhesion with glass |
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Answer : Option C
Explanation :
On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because cohesion of mercury is greater than its adhesion with glass.
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