Machine-translated by Google. Questions are authored in English.
Top

Discussion

A radar echo is much weaker than expected from a metal target. A likely cause is

  • A.the target being shaped to reflect the energy away from the receiver
  • B.the metal being a poor conductor at radar frequencies
  • C.the wave penetrating the metal rather than reflecting
  • D.the polarisation of the wave rotating in free space

Answer: A

Metal reflects almost perfectly, but the reflection is specular, so a surface angled away sends the energy elsewhere and little returns to the receiver. Shaping to achieve exactly that is the principle of a low-observable aircraft.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.