Question:
An aluminium sphere is dipped into water. Which of the following is true?
(a) buoyancy will be less in water at 0oC than that in water at 4oC
(b) buoyancy will be more in the water at 0oC than that in water at 4oC
(c) buoyancy in water at 0oC will be same as that in the water at 4oC
(d) buoyancy may be more or less in water at 4oC depending on the radius of the sphere
Solution:
The correct answer is (a) buoyancy will be less in water at 0oC than that in water at 4oC