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The steps of finding the reflected and transmitted fields at a boundary are listed below. Put them in order.

1. Compute the reflection coefficient   2. Find the intrinsic impedance of each medium   3. Compute the standing wave ratio   4. Obtain the transmitted amplitude from one plus the coefficient

  • A.2, 4, 1, 3
  • B.2, 1, 3, 4
  • C.2, 1, 4, 3
  • D.1, 2, 4, 3

Answer: C

The impedances come first because everything else is computed from them, then the reflection coefficient, then the transmission coefficient which is one plus it, and the standing wave ratio follows from the magnitude of the reflection coefficient last.

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