If varepsilon_{0} and mu_{0} are the permitti | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The speed of light in free space is given by $c = \frac{1}{\sqrt{\mu_{0} \varepsilon_{0}}}$.The speed of light in a medium is given by $v = \frac{

Vedclass · Accepted Answer

$\sqrt{\frac{\mu \varepsilon}{\mu_{0} \varepsilon_{0}}}$

Vedclass · Answer

(B) The speed of light in free space is given by $c = \frac{1}{\sqrt{\mu_{0} \varepsilon_{0}}}$.The speed of light in a medium is given by $v = \frac{1}{\sqrt{\mu \varepsilon}}$.The refractive index $n$ of a medium is defined as the ratio of the speed of light in vacuum to the speed of light in the medium:$n = \frac{c}{v} = \frac{\frac{1}{\sqrt{\mu_{0} \varepsilon_{0}}}}{\frac{1}{\sqrt{\mu \varepsilon}}} = \frac{\sqrt{\mu \varepsilon}}{\sqrt{\mu_{0} \varepsilon_{0}}} = \sqrt{\frac{\mu \varepsilon}{\mu_{0} \varepsilon_{0}}}$.Thus,the correct option is $B$.

If $\varepsilon_{0}$ and $\mu_{0}$ are the permittivity and permeability of free space and $\varepsilon$ and $\mu$ are the corresponding quantities for a medium,then the refractive index of the medium is:

Similar Questions

If a wave gets refracted into a denser medium,then which of the following is true?

The frequency of a light ray is $6 \times 10^{14} \,Hz$. Its frequency when it propagates in a medium of refractive index $1.5$, will be

When a light ray enters a medium with refractive index $\mu$,it is observed that the angle of refraction is half the angle of incidence. The angle of incidence is .........

Light travels through water in a beaker. The height of the water column is $h$. If the refractive index of water is $\mu_{w}$ and $C$ is the velocity of light in air,the time taken by light to travel through the water will be:

An initially parallel cylindrical beam travels in a medium of refractive index $\mu(I) = \mu_0 + \mu_2I$,where $\mu_0$ and $\mu_2$ are positive constants and $I$ is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius. The speed of light in the medium is

Vedclass Test Series

Exam Paper Generator

Online Exam Module