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Discussion :: Electromagnetic Field Thoery

  1. A medium of relative permittivity εr2 = 2 forms an interface with free space. A point source of EM energy is located in the medium at a depth of 1 meter from the interface. Due to the total internal reflection, the transmitted beam has a circular cross-section over the interface. The area of the beam cross section at the interface is given by

    2. A.
    2p m2
    B.
    p2 m2
    C.
    m2
    D.
    p m2

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    Workspace

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    Answer : Option D

    Explanation :

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