Physics: Convex Meniscus in Glass Tube
XAT 2019 · General Knowledge · Easy · General Knowledge
Which of the following liquids demonstrates a convex meniscus when confined within a glass tube?
- A.
Water in an anomalous expansion state between 0-4° C
- B.
Water at room temperature
- C.
Olive oil
- D.
Petroleum
- E.
Mercury
Answer
E
Explanation
Mercury does not wet glass because cohesive forces exceed adhesive forces, forming a convex meniscus.
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