Physics Question 41 – NEET-UG 2025

Two gases $A$ and $B$ are filled at the same pressure in separate cylinders with movable pistons of radius $r_A$ and $r_B$, respectively. On supplying an equal amount of heat to both the systems reversibly under constant pressure, the pistons of gas $A$ and $B$ are displaced by $16\text{ cm}$ and $9\text{ cm}$, respectively. If the change in their internal energy is the same, then the ratio $r_A/r_B$ is equal to