Answer the following problems.
problem 1) What is meant by polarization of a solid? Describe polarizability of atoms and molecules.
problem 2) Derive expressions for electric and ionic polarizability of dielectric materials.
problem 3) Describe the behaviour of a dielectric material in the ac field.
problem 4) Derive expression for the energy absorbed per second in a dielectric material when an ac field is applied.
problem 5) What are various types of point defects? Describe each of them.
problem 6) Derive expression for the concentration of valancies in metallic and ionic crystals.
problem 7) describe the role of dislocations in the crystal growth of a solid.
problem 8) What do you mean by magnetic susceptibility? describe experiments set up to measure the magnetic susceptibility of a material.
problem 9) Differentiate between classical and quantum theory of Para magnetism.
problem 10) describe the quantum theory of Paramagnetism. Give curies law for paramagnetic material.