What is the primary medium used in fiber optic cables to transmit information?, A) Electrical signals, Sound waves, Pulses of light, Radio waves, How does light behave inside a fiber optic cable?, Scatters in all directions, Bounces via total internal reflection, Slows down significantly, Absorbs into the cladding, What is total internal reflection?, Light escaping the cable, Light bending away from core, Light bouncing inside the core, Reflection at the surface of cladding, What is the core of a fiber optic cable made of?, Plastic with metal coating, Copper wires, Ultra-clear glass, Rubber, How is digital data transmitted in fiber optics?, Electrical voltage changes, Pulses of light representing 1s and 0s, Sound modulations, Magnetic signals, What technique allows multiple data streams on one fiber?, Frequency shifting, Wavelength division multiplexing, Electrical multiplexing, Signal amplification, What limits copper cables that fiber optics overcome?, Low cost, Resistance and interference, Flexibility, High data loss, Why do fiber optic cables have protective coatings?, To improve light transmission, To protect fragile glass strands, To increase weight, To conduct electricity, What role do lasers or LEDs play in fiber optics?, Reflect light internally, Generate light pulses to carry information, Shield the fiber cable, Detect signals, Which of these is NOT an advantage of fiber optics?, High bandwidth, Resistance to electromagnetic interference, Low transmission speed, Long-distance signal travel, Where are fiber optic cables commonly used?, Regional road signs, International data transmission and internet backbone, Household electrical wiring, Traditional telephony only, What is wavelength division multiplexing?, Sending light signals of different colors simultaneously, Electrical signal boosting, Physical splitting of cables, Encrypting fiber signals, How do fiber optics impact rural internet connectivity?, They have no impact, Enable high-speed access to remote areas, Increase costs of internet, Slow down connections, What is optical imaging used for?, Capturing data using radio waves, Capturing images using light interactions for analysis, Heating tissues, Transmitting sound, What is one medical application of fiber optics?, Wireless communication, Transmitting high-quality medical images in real time, Producing radiation, Cooling devices, What property makes fiber optics resistant to electromagnetic interference?, Use of plastic coatings, Use of light signals not electrical current, Metal shielding, Electrical insulation, How thin is a typical fiber optic cable core?, Thicker than a pencil, About the width of a human hair, Several centimeters, About the size of a USB cable, What challenge is common in fiber optic cables?, High resistance, Fragility and need for protection, Heavy weight, High cost of electricity, What is one future technology related to fiber optics?, Wireless copper cables, Integration with quantum optics and AI, Use of sound waves for data, Making cables out of steel, How does the fiber optic signal convert back to a form usable by computers?, Direct light use, Converted by detectors into electrical signals, Remains as light pulses, Magnetic signal conversion.
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OPTICAL TECHNOLOGIES
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