Q. The inner core of an optical fiber is ______

  • (A) Copper
  • (B) Glass or plastic
  • (C) Liquid
  • (D) Bimetallic
✅ Correct Answer: (B) Glass or plastic

Published by Rohan Raj ⭐ 6.53K Points at 07-Oct-2021 02:07 pm in Computer

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