which phenomenon is used in cables to transfer signals?
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- Signal Reflection is the phenomenon used in cables to transfer signals. Signal reflection occurs when a signal travels through a transmission medium, such as copper cable or optical fiber.
- Some signal power may be reflected back to its source instead of being carried down the cable to the other end.
- The theorem of absolute internal reflection governs the operation of optical fibers. Beams of light can carry a large amount of data, but there's a catch: beams of light travel in straight lines.
- Therefore, it would be difficult to take advantage of this unless we have a long, straight cable with no kinks. Optical cables, on the other hand, are designed to bend all light rays inwards (using (Total Internal Reflection) TIR).
- Rays of light travel indefinitely, scattering through fiber optic walls and sending data from end to end. While light signals fail over the distance, the loss is significantly lower than with metallic cables, depending on the purity of the material used.
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