Which type of transmission medium uses air or vacuum to transmit electromagnetic signals?

Options

  • A. Guided media
  • B. Unguided media
  • C. Twisted pair cable
  • D. Coaxial cable
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. Unguided media

Detailed Explanation

Correct Answer: Unguided media.

Unguided media transmits electromagnetic signals through air, vacuum or space without requiring a physical transmission path. Radio waves, microwaves and infrared are examples.