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Physics
Due to capillary action, a liquid will rise in a tube, if the angle of contact is
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Q. Due to capillary action, a liquid will rise in a tube, if the angle of contact is
Mechanical Properties of Fluids
A
Acute
38%
B
Obtuse
23%
C
$90^{\circ}$
21%
D
Zero
18%
Solution:
$h =\frac{2 S \cos \theta}{\rho rg}$
$\Rightarrow $ liquid will rise in a tube if angle is acute.