The refractive index of multi-graded index fiber from core to periphery:
Correct answer: A. Decreases
- A. Decreases
- B. Increases
- C. Remains the same
- D. Sometimes increases and sometimes decreases
Explanation
The correct option is A because The refractive index generally decreases from the core to the periphery and is not known to vary inconsistently.
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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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