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For a liquid which is rising in a capillary, he angle of contact is (a) Obtuse (b) Acute (c) 180° (d) 90°

For a liquid which is rising in a capillary, he angle of contact is
(a) Obtuse (b) Acute
(c) 180° (d) 90°

Grade:Upto college level

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Dear student

The answer is a

Regards
Vikas TU
14149 Points
3 years ago
The angle of contact is acute (less than 90) in the case of liquids which wet the walls of the container, then liquid rises in the capillary and angle of contact is obtuse (greater than 90) for the liquids which do not wet the walls of the container, ie, they fall in capillary tube

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