LiFi Technology
Question
With reference to 'LiFi', recently in the news, which of the following statements is/are correct?
Select the correct answer using the code given below.
- 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'.
Options
1 only
2 only
Both 1 and 2
Neither 1 nor 2
Explanation
LiFi (Light Fidelity) is a technology for wireless communication using visible light spectrum. Statement 1 is correct - LiFi uses light (specifically visible light communication) as the medium for high-speed bidirectional data transmission, similar to how WiFi uses radio waves. Statement 2 is correct - LiFi is a wireless technology that operates at much higher speeds than traditional WiFi, with potential speeds exceeding 100 Mbps or even Gbps depending on implementation. Both statements are accurate descriptions of LiFi technology. > LiFi Advantage: Light-based, faster than WiFi, line-of-sight wireless, high bandwidth. Answer: c.
Question details
Year
2016
Paper
GS Paper 1
Question
Q5
Subject
Science & Technology
Sub-topic
Communication Technology
Type
Statement-based
Difficulty
Easy
Nature
Current-affairs-linked
Source hint
Current Affairs 2015
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