A plane electromagnetic wave travelling in a perfect dielectric medium of characteristic impedance η1 is incident normally on its boundary with another perfect dielectric medium of characteristic impedance η2. The electric and magnetic field strengths of the incident wave are denoted by E1 and H1 respectively whereas Er
and Hr denote these quantities for the reflected wave, and Et and Ht for the transmitted wave.
Which of the following relations are correct?
1. Ei = η1Hi
2. Er = η1Hr
3. Et = -η2Ht
Select the correct answer using the options given below:
A. 1, 2 and 3
B. 1 and 2
C. 1 and 3
D. 2 and 3
Answer: Option C
This Question Belongs to Electronics And Communications Engineering >> Electromagnetic Field Theory
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