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Electromagnetic TheoryReflection & Transmission

When two media have equal intrinsic impedances at normal incidence, the reflection coefficient is?

  • AZero
  • BOne
  • CMinus one
  • DInfinite
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Correct Answer: A. Zero
Explanation: If η2=η1, Γ=(η2-η1)/(η2+η1)=0, so there is no reflected wave.
Reference: Standard electromagnetic theory: reflection & transmission
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