1) Collect information about Optical Fibres.
2) Where are Optical Fibres used?
3) How are Optical Fibres and Reflection associated.
Class 8 CBSE
Answers
Answer: 1)An optical fiber (or fibre in British English) is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair. ... Optical fibers typically include a core surrounded by a transparent cladding material with a lower index of refraction.
2)Some of the most popular uses of fibre optic cables are listed below.
Internet. Fibre optic cables transmit large amounts of data at very high speeds. ...
Computer Networking. ...
Surgery and Dentistry. ...
Automotive Industry. ...
Telephone. ...
Lighting and Decorations. ...
Mechanical Inspections. ...
Cable Television.
3)Optical fibres rely on total internal reflection for their operation. An optical fibre is a thin rod of high-quality glass. Light/infrared getting in at one end undergoes repeated total internal reflection and emerges at the other end. Notice that the light refracts towards the normal as it enters the optical fibre.
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