Question

Due to capillary action, a liquid will rise in a tube, if the angle of contact is

• A. Acute
• B. Obtuse
• C. 90°
• D. Zero

Answer 1

Answer: (A)

Acute

Answer 2

$h = \frac { 2 T \cos \theta } { r d g }$. If θ is less than 90° then h will be positive