Question

Describe an experiment to show that a body immersed in a liquid appears lighter than it really is

March 17, 2024

Answer

The weight of body immersed in a liquid appears to be less than it’s actual weight due to the effect of upthrust.

Experiment

Lifting of a bucket full of water from a well —

Take an empty bucket and tie a long rope to it. If the bucket is immersed in the water of a well keeping one end of rope in hand and the bucket is pulled when it is deep inside water, we notice that it is easy to pull the bucket as long as it is inside water.

But as soon it starts coming out of the water surface, it appears to become heavier and now more force is needed to lift it.

This experiment shows that the weight of body appears lighter when it is immersed in water than it’s actual weight (in air).

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