Physics
WAEC 1988
Which of the following explains the concave meniscus of water in a glass tube?
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A.
The adhesion between water and glas is greater than the cohesion between water molecules
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B.
The cohesion between water molecule is greater than the adhesion between glass and water
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C.
The molecules of water in the glass are moving faster than the molecules in the other parts
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D.
The molecules of water at the water-air boundary are often attracted to the center of the tube
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E.
The weight of the water pulls the central part of the surface down
Correct Answer: Option A
Explanation
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