Question

If two spheres of same materials immersed in water experience unequal upthrust, then which of the following statements is/are true?

• A. Their volumes inside the water are equal.
• B. Their loss of weights in water are equal.
• C. Their volumes inside the water are unequal.
• D. Both (a) and (c)

Answer 1

The correct option is C

Their volumes inside the water are unequal.

1. Up thrust will be experienced by any solid body in a liquid due to weight of the solid in downward direction.
2. When unequal thrust is created then any of the forces or quantity acting on the sphere is unequal (i.e.) their volumes must be unequal.
   Thus option (c) is the correct answer.