Technology in which light is transmitted through thin filaments of glass the size of a human hair?

Technology in which light is transmitted through thin filaments of glass the size of a human hair?

• A. Coaxial Cable
• B. Fiber Optics
• C. Microwave
• D. Stand-alone switch

Answer: (B)

Light transmission through hair-thin glass filaments is the hallmark of fiber optics. In fiber-optic communication, data is carried by light that travels inside very fine glass strands. The light stays guided along the length of the fiber by total internal reflection at the boundary between a dense core and a less dense cladding, allowing signals to travel long distances with minimal loss. This method offers extremely high bandwidth and is resistant to electromagnetic interference, which is especially valuable for critical and high-capacity networks like 911 systems. The other options describe different ways of moving information: coaxial cable uses electrical signals over copper, microwave refers to wireless radio-frequency transmission, and a stand-alone switch is a networking device, not a transmission medium.

Light transmission through hair-thin glass filaments is the hallmark of fiber optics. In fiber-optic communication, data is carried by light that travels inside very fine glass strands. The light stays guided along the length of the fiber by total internal reflection at the boundary between a dense core and a less dense cladding, allowing signals to travel long distances with minimal loss. This method offers extremely high bandwidth and is resistant to electromagnetic interference, which is especially valuable for critical and high-capacity networks like 911 systems. The other options describe different ways of moving information: coaxial cable uses electrical signals over copper, microwave refers to wireless radio-frequency transmission, and a stand-alone switch is a networking device, not a transmission medium.