Capillary tube with very thin walls is suspended vertically

Last updated: 6/24/2023

Capillary tube with very thin walls is suspended vertically in a cup containing water Before the capillary is suspended the cup was balanced against weights on a beam balance When capillary is dipped to a small distance in the water water rises in the capillary Water completely wets the capillary walls To restore the balance we have to decrease the load on the other scales by 0 14 g If the surface tension of water is 0 07 N m determine the radius r in mm of the capillary