UPSC Setu Logo
Science & Technology2020
With reference to Visible Light Communication (VLC) technology, which of the following statements are correct?
  1. VLC uses electromagnetic spectrum wavelengths 375
  2. VLC is known as long - range optical wireless comm-
  3. VLC can transmit large amounts of data faster than
  4. VLC has no electromagnetic interference
Select the correct answer using the code given below:

Explanation

The correct answer is indeed 1, 3, and 4 only. Visible Light Communication (VLC) utilizes the electromagnetic spectrum within the wavelengths of 375 to 780 nm, facilitating high-speed data transmission, which can exceed Bluetooth in terms of bandwidth and speed. Additionally, VLC operates without electromagnetic interference, as light waves are immune to radio frequency disturbances, making it a promising technology for environments where traditional wireless communication faces challenges. However, it is important to note that VLC is not classified as long-range communication, as its effective range is often limited by line-of-sight conditions.

New here?