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the velocity of an electromagnetic wave in medium is 2 into 10 ^ 8 metre per second if the relative permeability is 1 the relative permittivity of the medium is


SRIKANTH 31st Oct, 2019
Answer (1)
Upendra Gupta 31st Oct, 2019

Hiii shrikant answer to your question is

=1μ∈−−−√v=1μ∈=1(μoμr∈o∈r)−−−−−−−−−√=1(μoμr∈o∈r)

=cμr∈r−−−−√=cμr∈r

⇒v2=2μr∈r⇒v2=2μr∈r

⇒∈r=c2μrv2⇒∈r=c2μrv2=(3×108)2(2×108)2=(3×108)2(2×108)2=2.25

Final answer is 2.25

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