Civil Services Prep

Prelims 2016 · Science and Technology · Question 30

With reference to 'LiFi', recently in the news, which of the following statements is/are correct?<br/>1. It uses light as the medium for high-speed data transmission.<br/>2. It is a wireless technology and is several times faster than 'WiFi'.<br/><br/>Select the correct answer using the code given below.

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

Answer

Both 1 and 2

1. Correct. LiFi (Light Fidelity) uses visible light/LED light for data transmission, not radio waves like WiFi.

2. Correct. LiFi is a wireless communication technology and, in principle/tests, it can provide data speeds several times higher than WiFi.

Therefore, both statements are correct.

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