39. In a Gber-optie cable, the signal is propagated along the inner core by? (A) Refraction (B) Reflection (C) Modulation (D) None of the above
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Answer:
reflection
Explanation:
Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of infrared light through an optical fiber. The light is a form of carrier wave that is modulated to carry information.
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