Shaalaa.com | Capillarity and capillary action
Calculate the density of paraffin oil, if glass capillary of diameter 0.25 mm dipped in paraffin oil of surface tension 0.0245 N/m rises to a height of 4 cm. (Angle of contact of paraffin with glass = 28° and acceleration due to gravity = 9.8 m/s2.)
A soap bubble of radius 12 cm is blown. Surface tension of soap solution is 30 dyne/cm. Calculate the work done in blowing the soap bubble.
Draw a neat, labelled diagram for a liquid surface in contact with a solid, when the angle of contact is acute.
Draw a neat labelled diagram of rise of liquid in capillary tube showing different components of tension (force).