This video lecture from Properties of Solids (F.Sc. 2nd year physics) This video includes Distinguish between the structure of crystalline ,glassy, amorphous, and polymeric solids ,idea of lattice and Appreciate that formation is caused by force that is one dimension ,bulk modulus and shear modulus and young’s modulus in detail . Find more e-learning material and educational video lectures in Urdu at maktab.pk.