Light signals pass through multimode graded index fibre due to:
Correct answer: C. Both continuous refraction and total internal reflection
- A. Continuous refraction:
- B. Total internal reflection:
- C. Both continuous refraction and total internal reflection
- D. Diffraction:
Explanation
Explanation: Multimode graded index fibers use both continuous refraction and total internal reflection to guide light signals. The graded index profile helps in reducing modal dispersion.
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About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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