Answer:
Fiber optics are used for the transmission of telephone signals, examination of internal body parts and for decoration purposes, such as lamps.
Step-by-step explanation:
Fiber optics is an optical system where light (often from a laser) is passed through a fiber optic cable. This cable has a core made of very clean glass or plastic. It can be from several millimeters in diameter to a fraction of the thickness of a hair strand.
Fiber optic cables are widely used in telecommunications, as a waveguide, especially when the bandwidth requirement is high. Fiber optic cables have little cushioning, compared to communications cables made of copper. Optical cables are also used when the signals are to be transported over long distances.
Optical systems are also used for lighting and sensors. In medical science, fiber optic systems are extensively used to bring light into hard-to-reach cavities, and to bring the image out to the examiner / surgeon both during examinations and during surgical procedures.