In fiber-optics, the signal source is:

(a) Light waves
(b) Sound waves
(c) alfa- rays
(d) Cosmic rays

Anurag Mishra Professor Asked on 30th March 2016 in General Knowledge.
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1 Answer(s)

Answer: (a) Light waves 

Anurag Mishra Professor Answered on 2nd April 2016.
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