Question 5
1. It uses light as the medium for high-speed data transmission.
2. It is a wireless technology and is several times faster than 'WiFi'.
Select the correct answer using the code given below.
AOptions
BSolution
LiFi (Light Fidelity) is a wireless communication technology that uses light-emitting diodes (LEDs) for high-speed data transmission. Let's examine the statements:
- It uses light as the medium for high-speed data transmission: This is the fundamental principle of LiFi. Instead of radio waves (like WiFi), LiFi uses visible light, infrared, or near-ultraviolet (UV) light for communication. Data is transmitted by modulating the intensity of the light, which happens so rapidly that it's imperceptible to the human eye. This statement is correct.
- It is a wireless technology and is several times faster than 'WiFi': LiFi is indeed a wireless technology, as it transmits data through the air using light. Researchers have demonstrated LiFi speeds significantly faster than conventional WiFi, potentially reaching gigabits per second, due to the much broader spectrum of light compared to radio waves. While WiFi's speed is limited by radio spectrum congestion, light spectrum is abundant. This statement is correct.
Both statements accurately describe LiFi technology.
CStrategy
For questions on emerging technologies, understand the core principle of how they work, their key advantages, and potential applications. Comparisons with existing technologies (like LiFi vs. WiFi) are often highlighted, so note down the differences and improvements.
DSyllabus Analysis
This question falls under the Science and Technology section, specifically focusing on developments in information and communication technology and their applications.
EQuestion Analysis
Easy. LiFi has been a prominent topic in general science news, making its basic features widely known.