JEE Mains · Physics · STD 12 - 8. Electromagnetic waves
Electromagnetic waves travel in a medium with speed of \(1.5 \times 10^8 \mathrm{~ms}^{-1}\). The relative permeability of the medium is \(2.0\) . The relative permittivity will be _______.
- A \(5\)
- B \(1\)
- C \(4\)
- D \(2\)
Answer & Solution
Correct Answer
(D) \(2\)
Step-by-step Solution
Detailed explanation
\(\frac{\varepsilon_{\mathrm{II}} \times \mu_{\mathrm{mL}}}{\varepsilon_0 \times \mu_0}=\frac{\frac{1}{\mathrm{v}^2}}{\frac{1}{\mathrm{c}^2}}\) \(\varepsilon_{\mathrm{r}} \times \mu_{\mathrm{r}}=\frac{\mathrm{c}^2}{\mathrm{v}^2}\)…
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