Waves - light and sound

Waves - light and sound

1. Optical fibres

   • They are thin glass rods which can be put into wires
     • It carries information like computer data and telephone calls which are converted into electrical signals
   • The light going in one end undergoes lots of total internal reflections inside the wites
   • It is made with extremely pure optical glass
   • Electromagnetic radiation in optical fibres
     • Microwaves, Radio waves and Infrared light are transmitted along the optical fibres

2. Endoscopes

   • One of the two main cables carries light from a bright lamp in the operating room into the body, lighting up where the endoscope has been inserted. The light bounces along the cable into the patient's body.

3. Telephone signals

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