2010 · Q31
Which one of the following statements is correct ?
General KnowledgePhysics
- AThe angle of contact of water with glass is acute, while that of mercury with glass is obtuse
- BThe angle of contact of water with glass is obtuse, while that of mercury with glass is acute
- CBoth the angle of contact of water with glass and that of mercury with glass are acute
- DNone of the above
Explanation
Water wets glass (acute contact angle); mercury does not (obtuse).