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Question: Answered & Verified by Expert
The fundamental radio antenna is a metal rod which has a length equal to
PhysicsCommunication SystemVITEEEVITEEE 2006
Options:
  • A $\lambda$ in free space at the frequency of operation
  • B $\frac{\lambda}{2}$ in free space at the frequency of operation
  • C $\frac{\lambda}{4}$ in free space at the frequency of operation
  • D $\frac{3 \lambda}{4}$ in free space at the frequency of operation
Solution:
1294 Upvotes Verified Answer
The correct answer is: $\frac{\lambda}{4}$ in free space at the frequency of operation
The common antenna is a straight conductor of length $1=\frac{\lambda}{4}$ held vertically with its lower end touching the ground.

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