The working of optical fibre cable is based on the principle of ........

Everyday Science (PCS) Physics

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The working of optical fibre cable is based on the principle of

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PCS Previous year General Studies paper (2015)

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Total internal reflection

Polarization

Diffraction

Interference

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Explanation:

An optical fiber is a cylindrical dielectric waveguide (nonconducting waveguide) that transmits light along its axis, by the process of total internal reflection. To confine the optical signal in the core, the refractive index of the core must be greater than that of the cladding.