2nd Year Physics Chapter 17 Notes

• Important 2nd year physics chapter 17 mcqs for Intermediate part-II students.
• Classification of solids: crystalline solids, regular arrangement of molecules, vibrating particles, Cohesive forces, define melting points, amorphous or Glassy solids, irregular arrangements of molecules with examples.
• Important 2nd year physics chapter 17 notes pdf for Intermediate part-II students.
• Polymeric solids:  Polymerization, specific gravity and strength to weight ratio,  composition with examples, unit cell with examples
• Mechanical properties of solids: deformation in solids exam explanation with example  and Conclusion
• Important 2nd year physics chapter 17 important questions for Intermediate part-II students.
• Deformation in Crystalline solids
• Definition of Elasticity with examples
• Definition of stress with symbols and types of stress (i) Tensile Stress  (ii) Compressional or volumetric Stress  (iii) Shear Stress 
• Important 2nd year physics chapter 17 important short questions for Intermediate part-II students.
• Definition of a strain types of the train (i)  tensile strain (ii)  volumetric strain (iii)   Shear Strain
• Definition and formula of modulus of elasticity
• Definition and formula Young's modulus
• Important 2nd year physics chapter 17 Important long questions for Intermediate part-II students.
• definition and formula of bulk modulus
• definition and formula Shear modulus
• Definition of elastic limit
• Strain energy in deformed materials
• Important 2nd year physics chapter 17 conceptual questions for Intermediate part-II students.
• Work done in terms of modulus of elasticity
• Electrical properties of solids (i)  Conductors with examples (ii)  insulators with examples (iii) semiconductors with examples
• Formation of energy bands: types of energy bands: (i)   Forbidden energy band or band gap (ii)  Valance Band (iii) conduction band
• Important 2nd year physics chapter 17 long questions for Intermediate part-II students.
• Difference between insulator conductors and semiconductors on the basis of the band theory
• Intrinsic semiconductors and extrinsic semiconductors
• Types of extrinsic semiconductors:     (i) n-type semiconductors with explanation        (ii)     p-type semiconductors with explanation
• Important 2nd year physics chapter 17 exercise short questions for Intermediate part-II students.
• Definition of hole
• Superconductors and types of Superconductors    (i) Low-temperature superconductor    (ii) high-temperature superconductor
• Magnetic properties of solids  (i)  Orbital motion of electrons      (ii)     spin motion of electrons
• Important 2nd year physics chapter 17 solved exercise for Intermediate part-II students.
• Definition of magnetic dipole
  
• The paramagnetic substance with examples, Diamagnetic substance with examples, Ferromagnetic substance with examples, Ferromagnetic substance with examples
• Important 2nd year physics chapter 17 exercise for Intermediate part-II students.
• Domain theory for ferromagnetic substance
• (i)   Soft magnetic materials with examples and uses (ii)      hard magnetic materials and give examples and uses
• the effect of temperature on ferromagnetic materials
• Important 2nd year physics chapter 17 numericals for Intermediate part-II students.
• Hysteresis Loop, Definition of Hysteresis, Hysteresis Loop and its uses.
• Materials have specific uses depending upon their characteristics and properties, such as hardness, ductility, malleability, conductivity etc. What makes steel hard, lead soft, iron magnetic and copper electrically conducting? It depends upon the structure - the particular order and bonding of atoms in a material. This due has made it possible to design and create materials with new and unusual properties for use in modem technology.
• Important 2nd year physics chapter 17 solved numericals for Intermediate part-II students.
• Classification of solids: Crystalline solids: In crystalline solids there is a regular arrangement of molecules. The neighbours of every molecule are arranged in a regular pattern that is constant throughout the crystal. There is thus an ordered structure in crystalline solids. The vast majority of solids, e.g.. metals such as copper, iron and zinc, ionic compounds such as sodium chloride, ceramics such as zirconia are crystalline. The arrangement of molecules, atoms or ions within all types of crystalline solids can be studied using various X -ray techniques. It should be noted that atoms, molecules or ions in a crystalline solid are not static. For example, each atom in a metal crystal vibrates about a fixed point with an amplitude that increases with rise in temperature. It is the average atomic positions which are perfectly ordered over large distances.
• Important 2nd year physics chapter 17 notes pdf free download for Intermediate part-II students.
• Amorphous art glass students: The word amorphous means without form or structure. Thus in amorphous solids there is no regular arrangement of molecules like that in crystalline solids. We can therefore, say that amorphous solids are more like liquids with the disordered structure frozen in.