MCQ
A signal of $100 \,THz$ frequency can be transmitted with maximum efficiency by
  • A
    Coaxial cable
  • Optical fibre
  • C
    Twisted pair of copper wires
  • D
    Water

Answer

Correct option: B.
Optical fibre
b
Optical fibre frequency range is $1 \,THz$ to $1000 \,THz$.

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