Q174
On which bands, do the optical fibers operate? 1. Ultra violet band 2. Ultra high frequency band 3. Visible light band 4. Infrared band Select the correct answer from the options given below:
A.
1 only
B.
1 and 2 only
C.
1, 2 and 3
D.
1, 3 and 4
AnswerAnswer: Option D
Solution
Answer: Option D
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