prepare a project about various uses of optical fibres in our daily life
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Optical Fibre: An optical fibre is very thin fibre made of
glass or plastic having radius about a micrometer (10-6 m). A bunch
of such thin fibres form a light pipe.
Working: Because of the small radius of the fibre, light going into it makes a
nearly glancing incidence on the wall. The angle of incidence is greater than
the critical angle and hence total internal reflection takes place. The light
is thus transmitted along the fibre.
Uses:
¤ Optical fibres are used by doctors in 'Endoscope' to see all organs
inside the human body. For example throat, intestines... etc.
¤ Optical fibres are used to transmit communication signals through
light pipes.
¤ Optical fibres are used in International telephone cables laid down
under the sea.
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