COMEDK · Physics · 24. Electromagnetic Waves
The refractive index and the permeability of a medium are respectively \(1.5\) and \(5 \times 10^{-7} \mathrm{Hm}^{-1}\). The relative permittivity of the medium is nearly
- A \(25\)
- B \(15\)
- C \(6\)
- D \(10\)
Answer & Solution
Correct Answer
(C) \(6\)
Step-by-step Solution
Detailed explanation
Given, refractive index of the medium, \(n=15\) Permeability of the medium, \[ \mu=5 \times 10^{-7} \mathrm{Hm}^{-1} \] Relative permeability of the medium, \[ \mu_{r}=\frac{\mu}{\mu_{0}}=\frac{5 \times 10^{-7}}{4 \pi \times 10^{-7}}=\frac{5}{4 \pi} \] We know that, refractive…
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