Topic: Li-Fi
6. Can the Li-Fi technology prove to be the green avatar of Wi-Fi? Discuss and explain the challenges before India in realizing the potential of Li-Fi technology. (250 words)
Reference: Live Mint
Why the question:
The question is based on the theme of Li-fi technology and it’s potential.
Key Demand of the question:
One has to analyse if the Li-Fi technology prove to be the green avatar of Wi-Fi.
Directive:
Discuss – This is an all-encompassing directive – you have to debate on paper by going through the details of the issues concerned by examining each one of them. You have to give reasons for both for and against arguments.
Structure of the answer:
Introduction:
Start with what you understand by Li-Fi technology.
Body:
Li-Fi, or light fidelity, invented by German physicist and professor Harald Haas, is a wireless technology that makes use of visible light in place of radio waves to transmit data at terabits per second speeds—more than 100 times the speed of Wi-Fi.
Explain how Li-Fi works. List down its advantages and its limitations.
Present its potential applications.
Explain how it presents greater opportunity for India
Conclusion:
If Li-Fi can be put into practical use, every LED lamp (indoor as well as outdoor) can be converted into something like a hot spot to transmit data to every mobile device to achieve universal broadband communication between devices.
