Question

Thin, transparent fibres, usually made of glass that can transmit light. They are used for many things like telecommunications and networking, or to inspect anything hard to view in the normal way like the inside of a human stomach or the inside of a jet engine,
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Answer 1

Answer:

An optical fibre is a thin, transparent fibre, usually made of glass or plastic, for transmitting light. The construction of a single optical fibre is shown in the figure. The basic functional structure of an optical fiber consists of an outer protective cladding and an inner core through which light pulses travel.