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.