An aluminium sphere is dipped into water. Which of the following is true?
Buoyancy will be less in water at 0°C than that in water at 4°C
Buoyancy will be more in water at 0°C than that in water at 4°C
Buoyancy may be more or less in water at 4°C depending on the radius of the sphere
Buoyancy in water at 0°C will be same as that in water at 4°C
