Question
Question: A vertical glass capillary tube, open at both ends, contains some water. Which of the following shap...
A vertical glass capillary tube, open at both ends, contains some water. Which of the following shapes may be taken by the water in the tube?
A
(a)
A
(b)
A
(c)
A
(d)
Explanation
Solution
(d)
The two free liquid surfaces must provide a net upward force
due to surface tension to balance the weight of the liquid column.