Question

Q86) Which of the following statements is/ are true with respect to 'Li-Fi'?

1. It is wireless mode of data transmission.

2. Range of transmission is higher for Wi-Fi compared to Li-Fi.

3. It is slower than the current Wi-Fi technology

• A. a) Only 1
• B. b) Only 1 and 2
• C. c) Only 1 and 3
• D. d) All of the above

Answer 1

The correct option is B

b) Only 1 and 2

Answer 86: B
Explanation: Until now, wireless data was facilitated by Bluetooth (for low-speed, short distance wireless communication,) cellular
signals (wide range 3G, and soon 4G etc.) or Wi-Fi (broadband wireless within rooms, buildings and open areas). Recent
developments are pointing to a new-generation technology that uses LED light to transmit data known as Li-Fi (Light-Fidelity). Its
speeds will between 10 and 100 times faster than current-generation Wi-Fi. Transmission range of this technology is limited compared
to a radio frequency based technologies like Wi-Fi.