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an optical fibre is of lenght 2.1KM, refractive indices of core and cladding materials are of 1.6 and 1.4. a light ray enters the core from one end of the fibre such that it strikes the core – cladding interface at an angle slightly greater than critical angle. time taken by the light ray to come out of the fibre is in ------- micro sec.

an optical fibre is of lenght 2.1KM, refractive indices of core and cladding materials are of 1.6 and 1.4. a light ray enters the core from one end of the fibre such that it strikes the core – cladding interface at an angle slightly greater than critical angle. time taken by the light ray to come out of the fibre is in ------- micro sec.

Grade:12

1 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
one year ago
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