SATHEE: Optics Question 729

Optics Question 729

Question: If $ε_{0}$ and $μ_{0}$ are respectively, the electric permittivity and the magnetic permeability of free space, $ε$ and $μ$ the corresponding quantities in a medium, the refractive index of the medium is

[IIT-JEE 1982; MP PET 1995; CBSE PMT 1997]

Options:

A) $\sqrt{\frac{μ ε}{μ_{0} ε_{0}}}$

B) $\frac{μ ε}{μ_{0} ε_{0}}$

C) $\sqrt{\frac{μ_{0} ε_{0}}{μ ε}}$

D) $\sqrt{\frac{μ μ_{0}}{ε ε_{0}}}$

Show Answer

Answer:

Correct Answer: A

Solution:

$μ = \frac{c}{v} = \frac{1 / \sqrt{μ_{o} ε_{o}}}{1 / \sqrt{μ ε}} = \sqrt{\frac{μ ε}{μ_{o} ε_{o}}}$

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Optics Question 729

Question: If ε0 and μ0 are respectively, the electric permittivity and the magnetic permeability of free space, ε and μ the corresponding quantities in a medium, the refractive index of the medium is

Options:

Answer:

Solution:

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Question: If $ε_{0}$ and $μ_{0}$ are respectively, the electric permittivity and the magnetic permeability of free space, $ε$ and $μ$ the corresponding quantities in a medium, the refractive index of the medium is