A and B are two metallic pieces. They are fully immersed in water and the buoyant force due to water on both pieces is found to be same. From this we conclude that

A and B experience the same buoyant force, the volume of water displaced by both must be equal. The volume of displaced water is equal to the volume of the submerged object. Thus, the volumes of metallic pieces A and B are equal, regardless of their masses or densities.
Correct answer: (d) Volumes of metallic pieces A and B are equal.
Class 9th Science NCERT MCQ Questions
NCERT Books MCQ Questions Session 2024-2025.