On the basis of the following features, identify the correct fibre.
I. They are very fine strands of pure glass.
II. These fibres are used in making medical equipments.
III. These fibres are used to transmit messages in modern communication.
Optical fibres
Optical fibers are very fine strands of pure glass that are used most often as a means to transmit light between the two ends of the fiber. Due to this, it has found applications in making medical equipment and modern communication devices.