Communication media carry information in various forms. Coaxial cables use electrical signals transmitted through copper wires. Microwave and satellite communication use electromagnetic waves (radio waves) transmitted through the air or space. Optic fibre cables, however, use light pulses transmitted through thin strands of glass or plastic. This method allows for very high bandwidth and long- distance transmission with minimal signal loss.
Which one of the following communication media uses light pulses for carrying information?
Asked in UPSC CISF AC EXE 2019 · Topic: Data Communication and Transmission Modes (Guided Transmission Media (Twisted-Pair, Coaxial Cable, Fiber Optics))
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