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GATE ECE 1996 | Question-24

A uniform plane wave in air is normally incident on infinitely thick slab. If the refractive index of the glass slab is $1.5$, then the percentage of incident power that is reflected from the air-glass interface is

  1. $0 \%$
  2. $4 \%$
  3. $20 \%$
  4. $100 \%$

     

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