A glass rod of radius `1 mm` is inserted symmetrically into a glass capillary tube with inside radius `2 mm`. Then the whole arrangement is brought in contact with the surface of water. Surface tension of water is `7 xx 10^(-2) N//m`. To what height will the water rise in the capillary? (`theta = 0^@`)
A. `1.44cm`
B. `6cm`
C. `4.86`
D. none of these