Question

Which of the following items is not a type of material?​

Answer 1

The correct answer is option 3. Diode.

Explanation:

• Diode is not a type of material, it is a p-n junction.
• Insulators, Conductors and Semiconductors are the materials that are classified on the basis of energy levels of crystalline solid.
• Semiconductors refers to the materials that have conductivity between conductors and that of Insulators.
• The Semi conductivity of a material can be improved by simply adding suitable atoms called Impurities.
• This Process of improving semi conductivity through impurities id known as Doping.

Here, the question is incomplete, the correct question is:

Which of the following items is not a type of material?​

1. Conductor

2. Insulator

3. Diode

4. Semi conductor