The property of matter by virtue of which it regains its original shape and size, when deforming forces have been removed is called elasticity.<\/strong><\/em><\/p>\n\n\n\n To know more about elasticity let us look at atomic level. As solids are consists of atoms or molecules. However, these atoms are held together by inter atomic forces. When an external force is applied these particles are displaced and result in the deformation of the solid. When the applied force is removed inter atomic forces drive the atoms to regain their state of equilibrium.<\/p>\n\n\n\n In reality no material is perfectly elastic. For example, if you use a hair rubber band to tie your hair. You will notice after some time the rubber band loses its elasticity. You may also have noticed that even our hair shows deformation from its original shape. When we put hair in a particular style for a long time, it tends to deform. This is because the tie hair eventually loses its elastic nature.<\/p>\n\n\n\n