A medium of relative permittivity εr2 = 2 forms an interface with fre – McqOptions

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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
A.	2π m²
B.	π² m²
C.	π/2 m²
D.	π m²
Answer» E.

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