Question

If some object is weighed when submerged in water, what will happen to its weight compared to its weight in air?

• A. Increase
• B. Decrease
• C. Remain exactly the same
• D. Increase or decrease cannot be predicted

Answer 1

The correct option is A Increase

According to the Archimedes principle, if an object is immersed in a fluid, it experiences an apparent loss of weight which is equal to the weight of fluid displaced. The buoyant force which acts in the upward direction opposite to the weight of the object causes the apparent loss in weight. In air, the buoyant force is negligible. Hence, the object seems heavier as compared to when it is submerged.