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Optical fibre works on which of the following principle of light?
  • a)
    Reflection
  • b)
    Refraction
  • c)
    Diffraction
  • d)
    Total internal reflection
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Optical fibre works on which of the following principle of light?a)Ref...
Optical fibre work on the principle of Total Internal Reflection of Light. In an optical fibre, when light traveling in an optically dense medium hits a boundary at a steep angle (larger than the critical angle for the boundary), the light is completely reflected. This is called total internal reflection.
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Optical fibre works on which of the following principle of light?a)Reflectionb)Refractionc)Diffractiond)Total internal reflectionCorrect answer is option 'D'. Can you explain this answer?
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