Question

Wire guide may be considered as

• A. high pass filter
• B. low pass filter
• C. band pass filter
• D. band stop filter

Hint:

Waveguide passes only frequencies above cutoff → high-pass behavior.

Answer 1

The Correct Option is A

Concept: Waveguides allow propagation of electromagnetic waves above a certain cutoff frequency.

Step 1: Cutoff frequency Below cutoff → waves cannot propagate.

Step 2: Above cutoff Waves propagate efficiently.

Step 3: Behavior Blocks low frequencies and allows high frequencies.

Step 4: Equivalent system This behavior matches a high-pass filter.

Step 5: Conclusion \[ \boxed{\text{High pass filter}} \]

Final Answer: \[ \boxed{(A)} \]