Home
Class 12
PHYSICS
The for bidden gap in the energy bands o...

The for bidden gap in the energy bands of sillcon is

A

2. 6 eV

B

1.1 eV

C

0.6 eV

D

6 eV

Text Solution

AI Generated Solution

The correct Answer is:
To find the forbidden gap in the energy bands of silicon, we follow these steps: 1. **Understand the Concept of Forbidden Gap**: The forbidden gap, also known as the band gap, is the energy difference between the top of the valence band and the bottom of the conduction band in a semiconductor. It determines the electrical conductivity of the material. 2. **Know the Values for Different Semiconductors**: It is helpful to know the band gap values for common semiconductors. For instance, germanium has a band gap of approximately 0.67 eV. 3. **Identify the Band Gap for Silicon**: For silicon, the band gap is a well-known value. It is approximately 1.12 eV. 4. **Conclude the Answer**: Based on the known value, we can conclude that the forbidden gap in the energy bands of silicon is approximately 1.1 eV. ### Final Answer: The forbidden gap in the energy bands of silicon is approximately **1.1 eV**. ---

To find the forbidden gap in the energy bands of silicon, we follow these steps: 1. **Understand the Concept of Forbidden Gap**: The forbidden gap, also known as the band gap, is the energy difference between the top of the valence band and the bottom of the conduction band in a semiconductor. It determines the electrical conductivity of the material. 2. **Know the Values for Different Semiconductors**: It is helpful to know the band gap values for common semiconductors. For instance, germanium has a band gap of approximately 0.67 eV. 3. **Identify the Band Gap for Silicon**: For silicon, the band gap is a well-known value. It is approximately 1.12 eV. ...
Promotional Banner

Similar Questions

Explore conceptually related problems

The energy band gap of Si is

The energy band gap is maximum in

In an insulator, the forbidden energy gap between the valence band and conduction band is of the order of

What is the energy band gap of : (i) silicon and (ii) germanium?

The forbidden energy band gap in conductors, semiconductors and insulators are EG_(1), EG_(2) and EG_(3) respectively. The relation among them is

Simian gap is

Value of forbidden energy gap for semi conductor is:

From the information of energy band gaps of diodes, how do you decide which can be light emitting diodes?

Assertion : The energy gap between the valence band and conduction band is greater in silicon than in germanium. Reason : Thermal energy produces fewer minority carriers in silicon than in germanium.

The band gap between the valence and the conduction bands in zinc oxide (ZnO) is 3.0eV.Suppose an electron in the conduction band combines with a hole in the valence band and the excess energy is released in the form of electromagnetic radiation .Find the maximum wavelength that can be emitted in this process.