AIIMS 2019 Physics Pressure in Fluids MCQ Question

Option C is correct because it accurately reflects the principle that the force exerted by a liquid at a given depth is equal for equal masses, regardless of the shape or area of the base, as derived from the equation $F = P \times A$. Since the pressure $P$ is uniform across the same height $h$ and density $\rho$ of the liquid, the forces $F_A, F_B,$ and $F_C$ are equal when the masses are the same. Other options may misinterpret the relationships between pressure, force, and area or fail to recognize that equal masses lead to equal forces, regardless of the base area. Understanding these relationships is crucial for applying fluid mechanics principles effectively.