What is Total Internal Reflection?

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What is Total Internal Reflection?. Focus 4. Total Internal Reflection. Using total internal reflection: fibre optics. Light rays enter the centre core – a high refractive index - PowerPoint PPT Presentation

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What is Total Internal Reflection?

Focus 4

Total Internal Reflection

http://images.google.com.au/imgres?imgurl=http://www.fast-lab.org/resources/optical-fibers.jpg&imgrefurl=http://www.fast-lab.org/&usg=__7UThxDvusp5hZHJkCFi8PtDGf5Q=&h=299&w=340&sz=13&hl=en&start=3&itbs=1&tbnid=HNDBUKDwM-xPnM:&tbnh=105&tbnw=119&prev=/images%3Fq%3Doptical%2Bfibers%26hl%3Den%26gbv%3D2%26tbs%3Disch:1

Using total internal reflection: fibre opticsLight rays enter the centre core – a

high refractive index

They are reflected at the interface between the core and the cladding because the cladding has a lower refractive index – total internal reflection has occurred.

http://www.scientificchess.com/articles/GoldCylindricalOpticalFiber_files/image001.jpg

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