The velocity of electromagnetic radiation in a medium of permittivity $\varepsilon_{0}$ and permeability $\mu_{0}$ is given by
- A$\sqrt{\frac{\varepsilon_{0}}{\mu_{0}}}$
- B$\sqrt{\mu_{0} \varepsilon_{0}}$
- C$\frac{1}{\sqrt{\mu_{0} \varepsilon_{0}}}$
- D$\sqrt{\frac{\mu_{0}}{\varepsilon_{0}}}$
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Similar Questions
Statement-$I$ :- During propagation of electromagnetic wave,$\vec{E}$,$\vec{B}$ and direction of propagation are perpendicular to each other.
Statement-$II$ :- During propagation of electromagnetic wave,the energy density due to electric and magnetic fields are equal.
Statement-$II$ :- During propagation of electromagnetic wave,the energy density due to electric and magnetic fields are equal.
Medium
View SolutionThe electric field of a plane polarized electromagnetic wave in free space at time $t = 0$ is given by the expression $\vec E(x,z) = 10\hat j \cos(6x + 8z)$. The magnetic field $\vec B(x,z,t)$ is given by: ($c$ is the velocity of light)
DifficultJEE MAIN 2019
View SolutionIn the propagation of electromagnetic waves,the angle between the direction of propagation and the plane of polarisation is (in $^{\circ}$)
Easy
View SolutionThe radiation energy emitted per second by a point source is $100 \,W$. If the efficiency of the source is $4 \%$, then the rms value of the electric field at a distance of $2 \,m$ is [use $\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9$ in $SI$ units].
Electromagnetic waves are transverse in nature is evident by
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