Question

what is free surface of a liquid​

Answer 1

Answer:

In physics, a free surface is the surface of a fluid that is subject to zero parallel shear stress, such as the interface between two homogeneous fluids, for example liquid water and the air in the Earth's atmosphere. Unlike liquids, gases cannot form a free surface on their own.

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Answer 2

Answer:

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Explanation:

Solids have infinite no of surfaces because it has infinite no of shapes and molecules are closely packed to each other and are not able to flow like fluids .for example a brick is made up of mud and this mud is made up of small particles like dry dirt and some amount of water .