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With Reference To ‘Li-Fi’, Recently In The News, which of the following statements is/are correct?

With reference to ‘Li-Fi’, recently in the news, which of the following statements is/are correct?

  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.(2016)

a) 1 only

b) 2 only

c) Both 1 and 2

d) Neither 1 and 2

ANswer: C

Li-Fi (short for light fidelity) is wireless communication technology which utilizes light to transmit data and position between devices. The term was first introduced by Harald Haas during a 2011 TEDGlobal talk in Edinburgh.

In technical terms, Li-Fi is a light communication system that is capable of transmitting data at high speeds over the visible light, ultraviolet, and infrared spectrums. In its present state, only LED lamps can be used for the transmission of visible light.

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