Angle of Contact & Capillarity question from MHT CET 2024 (9 May, Shift 2)

Answer: (b)

1. All three rise, so each $\theta < \frac{\pi}{2}$ ($\cos\theta > 0$).
2. Same $h$, $T$, $r$: $\cos\theta \propto \rho$; $\rho_1 > \rho_2 > \rho_3 \Rightarrow \cos\theta_1 > \cos\theta_2 > \cos\theta_3$.
3. So $0 \le \theta_1 < \theta_2 < \theta_3 < \frac{\pi}{2}$; the answer is (b).