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Dispersional effect may produce error in light signals. This type of error is minimum in:

Correct answer: A. Single mode step index fibre

  • A. Single mode step index fibre
  • B. Multimode step index fibre:
  • C. Multimode graded index fibre:
  • D. Monomode step index fibre:

Explanation

Explanation: Dispersion causes spreading of different colors of light, leading to signal distortion. Single mode step index fiber minimizes dispersion effects because it allows only one mode of light to propagate, reducing the chances of 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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