Water rises in a capillary tube to a certain height such that the upward force due to surface tension is balanced by 75 × 10-4 N, forces due to the weight of the liquid. If the surface tension of water is6 × 10-2 N/m, the inner-circumference of the capillary must be(a) 1.25 × 10-2 m (b) 0.50 × 10-2 m(c) 6.5 × 10-2 m (d) 12.5 × 10-2 m

saurabh kumar , 11 Years ago

Grade 12