===== Chapter 17: Physics of Solids =====
Notes of Chapter 17: Physics of Solids of “Physics XII” for FSc Part 2 published by Punjab Textbook Board, Lahore. These notes are very helpful to prepare Physics paper of FSc Part 2 for Federal Board, Multan Board, Faisalabad Board, Sargodha Board, Gujranwala Board, DG Khan Board, Rawalpindi Board or any other board of Punjab, Pakistan.

=== Summary and Contents ===
The solids in which the atoms, ions and molecules are arranged periodically are called crystalline solids.The crystalline solids show the phenomenon of X-ray diffraction.Every crystalline solid has sharp melting point i.e., for every crystal there is a temperature at which the thermal vibrations becomes so great that the structure suddenly breaks up, and the solid melts.

  * Introduction
  * Solids
  * Crystalline solids
  * Amorphous solids
  * Polymeric solids
  * Unit cell
  * Crystal lattic
  * Mechanical properties of solids
  * Deformation in crystalline solids
  * Elasticity
  * Stress
  * Types of stress
  * Strain
  * Modulus of elasticity
  * Young`s Modulus
  * Bulk Modulus
  * Shear Modulus
  * Elastic limit and yield strength
  * Ultimate tensile strength
  * Ductile substances
  * Brittle substances
  * Strain energy
  * Electrical properties of solids
  * Energy band theory
  * Forbidden energy band
  * Valence band
  * Conduction band
  * Free electron
  * Insulators
  * Conductors
  * semiconductors
  * Types of semiconductors
  * Doping
  * Structure of semiconductors
  * Donor impurity
  * Acceptor impurity
  * Electric conduction
  * Superconductors
  * Magnetic properties of solids
  * Types of magnetic material
  * Electromagnet
  * Hysteresis loop
  * Hysteresis loss


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