80° The figure above shows a cross-section of an optical fibre used in telecommunication. (a.) State and explain two reasons why optical fibres are preferable to copper cables for this purpose. (b.) State the principle on which optical fibres operate and state the conditions under which this principle is satisfied. (c.) How are the conditions stated above made satisfied in the manufacture of o ptical fibres? (d.) The speed of light in the core is 1.95 x 108ms-1 while the smallest angle of incidence in the core is 80°. (i.) Explain the significance of the statement "smallest angle of incidence in the core is 80°". (ii.) Calculate the refractive index of the core and that of the cladding.
80° The figure above shows a cross-section of an optical fibre used in telecommunication. (a.) State and explain two reasons why optical fibres are preferable to copper cables for this purpose. (b.) State the principle on which optical fibres operate and state the conditions under which this principle is satisfied. (c.) How are the conditions stated above made satisfied in the manufacture of o ptical fibres? (d.) The speed of light in the core is 1.95 x 108ms-1 while the smallest angle of incidence in the core is 80°. (i.) Explain the significance of the statement "smallest angle of incidence in the core is 80°". (ii.) Calculate the refractive index of the core and that of the cladding.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter6: Power Flows
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Answer d(i) & d(ii)
Transcribed Image Text:80°
The figure above shows a cross-section of an optical fibre used in telecommunication.
(a.) State and explain two reasons why optical fibres are preferable to copper cables for this
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(b.) State the principle on which optical fibres operate and state the conditions under which this
principle is satisfied.
(c.) How are the conditions stated above made satisfied in the manufacture of o ptical fibres?
(d.) The speed of light in the core is 1.95 × 108ms-1 while the smallest angle of incidence in the
core is 80°.
(i.) Explain the significance of the statement "smallest angle of incidence in the core is 80°".
(ii.) Calculate the refractive index of the core and that of the cladding.
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