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प्रश्न
Optical fibre communication uses the principle of ______.
विकल्प
light path reversibility
least action
total internal reflection
light scattering
MCQ
रिक्त स्थान भरें
उत्तर
Optical fibre communication uses the principle of total internal reflection.
Explanation:
Here, refracting index of cladding < refracting index of core.
Hence, when i > c, TIR takes place.
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