Prob. $1\mathrm{.}9\mathrm{.}12$ p$.$ IP$-9[$Ans: $0\mathrm{.}018ft].$

$1\mathrm{.}9\mathrm{.}12$ WP Video An open, clean glass tube $)=(0$ is inserted vertically into a pan of water $($see Video V$1\mathrm{.}10).$ What tube diameter is needed if the water level in the tube is to rise one tube diameter $($due to surface tension$)?$