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Option 2 : Light
- Light is used to transmit data in the optical fibre.
- Optical fibre communication holds light as the information carrier and optical fibre as the transmission medium for communication.
- When the light injection angle meetsa certain order, the light can form total reflection in the optical fibre to achieve long-distance transmission.
- The light in a fibre-optic cable travels through the core by constantly blooms from the clad mirror-lined walls, hence the light is confined to the core.
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