Assignment:
1. Describe in detail and with the aid of diagrams the Photoelectric Effect experiment.
2. Describe the Davisson and Germer Electron Scattering Experiment.
3. Describe the excitation of electrons in an intrinsic semiconductor and derive an equation for the conductivity of the material.
4. Explain what is meant by the following terms in the context of semiconducting materials: (i) p-type, (ii) n-type, (iii) majority carrier, (iv) minority.
5. Explain with the aid of energy band diagrams the flow of current through a p-n junction under (i) zero bias, (ii) reverse bias and (iii) forward bias conditions.