Water rises in a capillary tube to a certain height such that the upward force due to surface tension is balanced by 7 5 x 10^-4  N, force due to the weight of the liquid. If the surface tension of water is 6 x 10^-2 N/m, the inner circumference of the capillary must be:

• A

  $1.25 \mathrm{x} {10}^{-2} \mathrm{m}$

• B

  $0.50 \mathrm{x} {10}^{-2}\mathrm{m}$

• C

  $6.5 \mathrm{x} {10}^{-2} \mathrm{m}$

• D

  $12.5 \mathrm{x} {10}^{-2} \mathrm{m}$