Multiple choice

A medium is divided into regions I and II about x = 0 plane, as shown in the figure below. An electromagnetic wave with electric field E1 = 4$\widehat a$x + 3$\widehat a$y + 5$\widehat a$z is incident normally on the interface form region-I. The electric field E2 in region-II at the interface is

  1. E2 = E1

  2. 4$\widehat a$x + 0.75$\widehat a$y + 1.2 5$\widehat a$z
  3. 3$\widehat a$x + 3$\widehat a$y + 5$\widehat a$z
  4. - 3$\widehat a$x + 3$\widehat a$y + 5$\widehat a$z
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C Correct answer
Explanation