Due to capillary action, a liquid will rise in a tube if angle of contact is
Practice this Mechanical Properties of Fluids question from Engineering Entrance Exam.
Question Details
Physics
Mechanical Properties of Fluids
Engineering Entrance Exam
Question
Due to capillary action, a liquid will rise in a tube if angle of contact is
Solution
\(h = \frac{{2T\cos \theta }}{{\rho rg}};\) The liquid will rise i.e., h is positive
if \(\cos \theta \) is +ve; It is so if \(\theta < {90^o}\) or \(\theta \) is acute.