B.Tech-COMMON PAPER 2nd Sem ENGINEERING PHYSICS(Anna University Trichy, Tiruchi, Tamil Nadu-2009)

1. How classical free electron theory failed to account for specific heat of solid?
2. Define Fermi energy level and give its importance.
3. Give any two differences between elemental and compound semiconductors
4. Draw the diagram to show variation of Fermi level with temperature in the cases of p-type semiconductor for high and low doping level.
5. Mention the energies involved in domains of ferromagnetic materials.
6. What is cooper pair of electrons?
7. Define dielectric loss.
8. What are ferroelectric materials?.
9. Write the merits of metallic glasses as transformer core
10. What are the different structures of carbon nanotubes?