Questions
A plane electromagnetic wave propagating in a non magnetic dielectric medium is given by , where is in meter and is in second. If the relative permeability of the medium then the dielectric constant of the medium is
detailed solution
Correct option is D
Speed of electromagnetic wave in Vacuum is C=1μ0∈0Speed of electromagnetic wave in a dielectric medium of dielectric constant (k) is given by C'=1kμ0∈0=CkFrom given equation C'=ωk=502×10−7C'=52×108m/s and C=3×108m/s Using, C'=Ck ⇒52×108=3×108k ⇒254=9k ⇒k=1.44Talk to our academic expert!
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