Defects in Solids and Semiconductors

Term 161

• Q2(a) [4]: What are the conductors, insulators and semiconductors?
• Q2(b) [10]: Explain n-type and p-type semiconductors.

Term 171

• Q2(a) [2+6]: What are semiconductors? How does semiconductivity arise?
• Q2(b) [6]: What do you mean by valance band, conduction band and forbidden band?
• Q5(a) [2+2]: What are defects in solid/crystal? Write some importance of crystal defects.
• Q5(b) [3+3]: How many types of imperfections in crystalline solids? Give their names and explain point defects with suitable example.

Term 201

• Q3(a) [4]: What are semiconductors? What types of defects are present in stoichiometric compounds?

Term 211

• Q6(b) [2+2]: What are conductor and semiconductor?
• Q6(c) [2+3]: How many types of defects are available in solid? Explain point defect with suitable example.