Water rises a height of 10 cm in a capillary tube. When the same capillary tube is dipped in mercury it falls to a height of 3.4cm. Compare the surface tensions of water and mercury. Assume that the specific gravity of mercury is 13.6, angle of contact of water with glass is 0^(@) and angle of contact of water with glass is 135^(@).

Water rises a height of 10 cm in a capillary tube. When the same capil

1.	Water rises a height of 10 cm in a capillary tube. When the same capillary tube is dipped in mercury it falls to a height of 3.4cm. Compare the surface tensions of water and mercury. Assume that the specific gravity of mercury is 13.6, angle of contact of water with glass is 0^(@) and angle of contact of water with glass is 135^(@).
Answer» ANSWER :0.1529