Question

Consider the following statements:

1. Fibre optics is based on the principle of total internal reflection.
2. In optical fibre communication system power consumption is extremely low.
3. Optical fibre communications are free from radio frequency interference.
4. In India, Reliance group of Industries is engaged in the manufacture of optical fibre.

Of these statements:

  1. 1, 2 and 3 are correct
  2. 1, 2 and 4 are correct
  3. 1, 3 and 4 are correct
  4. 2, 3 and 4 are correct

Answer:

Option A: 1, 2 and 3 are correct

Detailed Solution:

The correct answer is “1, 2 and 3 are correct”.

The correct answer is (1) 1, 2 and 3 are correct.

Reliance group of Industries is not known for manufacturing optical fibre. Companies like Sterlite Technologies, Birla Furukawa Fibre Optics, and Vindhya Telelinks are prominent in optical fibre manufacturing in India.