1.1 Introduction
Solid is one of the three main states of matter, along with
liquid and gas. Matter is the "stuff" of the universe, the atoms,
molecules and ions that make up all physical substances. In a solid, these
particles are packed closely together and are not free to move about within the
substance.
Solid
:- The matter which possess rigidity and hence possesses a definite shape and
volume ,are called Solid.
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