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Heat and Thermodynamics question

2025 · Q163
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Heat and Thermodynamics question

2025 · Q163

NEETPhysicsHeat and ThermodynamicsMCQ+4 / −1

Two gases AAA and BBB are filled at the same pressure in separate cylinders with movable pistons of radius rAr_ArA​ and rBr_BrB​, respectively. On supplying an equal amount of heat to both the systems reversibly under constant pressure, the pistons of gas AAA and BBB are displaced by 16 cm and 9 cm , respectively. If the change in their internal energy is the same, then the ratio rArB\frac{r_A}{r_B}rB​rA​​ is equal to

  1. A
    23\frac{2}{\sqrt{3}}3​2​
  2. B
    32\frac{\sqrt{3}}{2}23​​
  3. C
    43\frac{4}{3}34​
  4. D
    34\frac{3}{4}43​
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