Q5: Sketch the spectrum of g(t) if it is sampled at the following sampling frequencies: 25 KHz, 50 KHz and 60 KHz. Indicate if and how the signal can be recovered at each sampling freq. G(f) f(kHz) -25 -15 25 15

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Fiber Optics

Fiber optics is a technology used to transmit the facts such as light or pulses with fiber or plastic over long distances. Visual fibers are about the width of a human hair strand and, when tied directly to a fiber-optic cable, can transmit multiple long-distance records and faster in different ways.