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Optics_book

Language activity

Exercise 1. Insert prepositions used in text.

A fiber optic transmitter and receiver are connected … fiber optic cable. The fiber is totally immune … virtually all kinds of interference. The basic fiber is made … glass. Fiber optic cable is ideal … secure communications systems. Fiber can carry much more information and deliver it … great fidelity. The optical transmitter converts an electrical analog or digital signal … a corresponding optical signal. Progressing … the copper wire to fiber optic cable has promoted technological development in all areas.