Which of the following descriptions about optical fibers is wrong?

Question

Options

• AThe diameter of multimode fiber is usually about 50m.
• BThe refractive index n1 of the core is greater than the refractive index n2 of the cladding.
• CThe loss of optical fiber mainly depends on three kinds of losses: absorption loss, scattering loss and
• DThe diameter of single-mode fiber is generally greater than 10 m.

• A
  75% (18)
• B
  4% (1)
• C
  17% (4)
• D
  4% (1)

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