Fiber Optics exam 2024 with verified solutions

what was the earliest advantages that light held over other forms of communication correct answersB. ability to carry messages quickly the experiments in which light could b seen in water draining from a vessel proved that correct answersC. light could be guided through some materials some of the earliest attempts to carry light through glass fibers took place because researchers were trying to correct answersA. view images from inside the human body one of the first goals in creating a fiber that could be used for communications was to correct answersD. Reduce signals lost to 20 decibels per kilometer the decade saw the greatest advantages in the use of fiber optics for data and communications was correct answersD. the 1970's confining light in a material by surrounding it by another material with lower refractive index is the phenomenon of correct answersA. Cladding Abraham Van Heel, in order to increase the total internal reflection, Covered bare fiber with transparent cladding of correct answersB Lower refractive index the high loss of early optical fiber was mainly due to correct answersA. Impurities _________, using fused silica, made the first low loss (20 dB/Km) single mode optical fiber. correct answersC. Corning Glass Works Half duplex systems allow signals to correct answersD. go only one way at a time