33. Radius of a capillary is

2×10-3m .  A liquid of weight  6.28 x 10-4 N may remain in the capillary then the surface tension of liquid will be   (a)  5 x 10-3 N/m (b) 5 x 10-2 N/m (c) 5 N/m (d) 50 N/m …