Question
The velocity of e.m. waves in a medium is $2.5 \times 10^{8} \mathrm{~ms}^{-1}$. what is the dielectric constant of the medium?(A) $1.2$(B) $1.44$(C) $0.69$(D) $1.6$
Step 1
5 \times 10^{8} \, \mathrm{ms}^{-1}$, and we know the velocity of light in vacuum, $c = 3 \times 10^{8} \, \mathrm{ms}^{-1}$. Show more…
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