Advantages of optical fibre communication over two wire transmission line or co-axial cable transmission are

Options

A. low band width , low transmission loss
B. high band width , high commission loss
C. high band width , low transmission loss
D. low band width , high transmission loss

Answer

### Step-by-Step Solution:

1. **Understanding Optical Fiber Communication**:
- Optical fiber communication involves transmitting information using light pulses. This method utilizes the properties of light to convey data over distances.

2. **Low Wavelength of Light**:
- Light has a very low wavelength compared to electrical signals used in two-wire or coaxial cable systems. The low wavelength allows for a higher frequency of transmission.

3. **High Bandwidth**:
- Due to the low wavelength, optical fibers can support a higher bandwidth. This means they can carry a larger amount of information simultaneously compared to traditional transmission lines.

4. **Low Transmission Loss**:
- Optical fibers experience significantly lower transmission losses over long distances. This is because light signals can travel through the fiber with minimal attenuation, unlike electrical signals which can degrade over distance in copper wires.

5. **Resistance to Electromagnetic Interference**:
- Optical fibers are immune to electromagnetic interference, which can affect the performance of two-wire and coaxial cables. This makes optical fibers more reliable in environments with high electromagnetic noise.

6. **Lightweight and Flexible**:
- Optical fibers are generally lighter and more flexible than copper cables, making installation easier and less cumbersome.

7. **Security**:
- Optical fiber communication is more secure than traditional methods because it is difficult to tap into an optical fiber without detection.

### Summary of Advantages:
- High bandwidth capability.
- Low transmission loss over long distances.
- Immunity to electromagnetic interference.
- Lightweight and flexible for easier installation.
- Enhanced security against eavesdropping.