The applications of physics in different areas of life are fascinating, Fiber optics is one of the best examples. Fiber Optics is built on the principle of Total Internal Reflection. A fiber optic cable consists of a bundle of glass threads, each of which is capable of transmitting messages modulated onto light waves. When a light signal is directed at one end of the fiber at a suitable angle, it undergoes repeated total internal reflection along the length of the fiber. It finally comes out at the other end. The fiber consists of a core surrounded by a cladding layer they are made of dielectric materials. To confine the optical signal in the core, the refractive index of the core must be greater than that of the cladding. Optical fiber is flexible, it can be bundled as cables and used in many uses in remote sensing. It is widely used as medium for telecommunication and computer networking. Optical fiber can be used to transmit power using a photovoltaic cell to convert the light into electricity. Optical fiber lamps are used for illumination in various decorative applications such as toys. The related presentation will provide additional knowledge regarding the topic.

Shashank Shekhar Pathak

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