Three liquids of densities $\rho_1, \rho_2$ and $\rho_3$ (with $\rho_1 > \rho_2 > \rho_3$),having the same value of surface tension $T$,rise to the same height in three identical capillaries. The angles of contact $\theta_1, \theta_2$ and $\theta_3$ obey:

• A
  $\frac{\pi}{2} < \theta_1 < \theta_2 < \theta_3 < \pi$
• B
  $\pi > \theta_1 > \theta_2 > \theta_3 > \frac{\pi}{2}$
• C
  $\frac{\pi}{2} > \theta_1 > \theta_2 > \theta_3 > 0$
• D
  $0 \le \theta_1 < \theta_2 < \theta_3 < \frac{\pi}{2}$