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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 1 > Chapter 13 - Fluid Mechanics > 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 newton force due to the weight of the liquid. If the surface tension of water is 6×10^-2` N/m the inner circumference of the capillary must be:

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 newton force due to the weight of the liquid. If the surface tension of water is 6×10^-2` N/m the inner circumference of the capillary must be:

Which graph represents the variation of surface tension with temperature over small temperature ranges for water?