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NEET 2023 · Refraction, Glass Slab & Apparent Depth

Refraction, Glass Slab & Apparent Depth question from NEET 2023

Q31NEET 2023Easy

Refraction, Glass Slab & Apparent Depth

$\epsilon_0$ and $\mu_0$ are the electric permittivity and magnetic permeability of free space respectively. If the corresponding quantities of a medium are $2\epsilon_0$ and $1.5\mu_0$ respectively, the refractive index of the medium will nearly be:

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Answer: (b)

$n = \frac{c}{v} = \sqrt{\frac{\mu \epsilon}{\mu_0 \epsilon_0}}$
$n = \sqrt{1.5 \times 2} = \sqrt{3}$
So the answer is (b) $\sqrt{3}$ .

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