Physics · 2008
NEET 2008 · Prelims · Code A · Q21
The velocity of electromagnetic radiation in a medium of permittivity ε_o and permeability μ_o is given by:
The velocity of electromagnetic radiation in a medium of permittivity $\displaystyle \epsilon_{\mathrm{o}}$ and permeability $\displaystyle \mu_{\mathrm{o}}$ is given by :
Official answer
(4)
$\displaystyle \frac{1}{\sqrt{\mu_0 \epsilon_0}}$
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NEET (UG) 2008 Physics question, with the answer from NTA’s final answer key. Where our answers come from.