A glass rod of diameter `d_1` = 1.5mm is inserted symmetrically into a glass capillary with inside diameter `d_2` = 2.0 mm . Then the whole arrangement is vertically oriented and brought in contact with the surface of water. To what height in cm will be water rise in the capillary? (surface tension `T = 75 xx 10^(-3) ` N/m))

Answer

6