If the capillary tube is placed in absence of gravity then what will be the effect on the liquid inside it?
When the capillary tube is placed in absence of gravity, the surface tension of the capillary tube would pull the liquid to completely fill the tube. The liquid surface reaches the other end of the tube, no more pulling force would be applied to the liquid.
For understanding it thoroughly watch this ESA (Europian Space Agency ) Video: This video is shared just for learning purpose. All Copyright claim goes to ESA.