Question

For a liquid, which is rising in a capillary tube, the angle of contact is

• A. ${90}^o$
• B. ${180}^o$
  
• C. Acute
• D. Obtuse

Answer 1

The correct option is C Acute

If a liquid is rising in a capillary then adhesive forces are greater than cohesive forces. Hence the angle of contact is acute.