Statement I: Propagation of light through an optical fibre is due to total internal reflection taking place at the core-clade interface.
Statement II: Refractive index of the material of the core of the optical fibre is greater than that of air.
In the light of the above statements, choose the most appropriate answer from the options given below :
Text Solution
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Both Statement I and Statement II are correct.
Optical fibre communication is based on the phenomenon of total internal reflection at core-clad interface.
The refractive index of the material of the cladding, hence, light striking at core-cladding interface gets totally internally reflected. The light undergoes and reaches the other end of the fibre.
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