Q67
Consider the following statements. 1. Fibre optics is based on the principle of total internal reflection. 2. In an 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 the optical fibre. Which of these statements are correct?
A.
Only 1, 2 and 3
AnswerB.
Only 1, 2 and 4
C.
Only 1, 3 and 4
D.
Only 2, 3 and 4
Answer: Option A
Solution
Answer: Option A
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