To what extent the fluid ascends or descends in the water, depending on the radius of the capillary. In the narrow tube, the volume of the fluid is high and the volume of the fluid in the broad tube is low. Usually the fluid glass that has a grinder, it climbs up in the hair tube, and the liquid which does not crack the glass, it gets suppressed. Just like when the Capillary is dipped in water, the water climbs up and water The surface of the surface remains rusty inside the cascade. On the contrary, when the Capillary is dipped in it, the mercury keeps the bottom of the mercury in the vessel, and the surface of the mercury is raised in the Capillary.