Embibe Experts Solutions for Chapter: Electromagnetic Waves, Exercise 4: Exercise (Previous Year Questions)

Which of the following statement is false for the properties of electromagnetic waves?

For an EM wave, $E=E_0\sin 12\times {10}^6\left[Z–2\times {10}^{8}t\right] \mathrm{N} {\mathrm{C}}^{-1}$ in a medium. Then, its refractive index is,

In the EM wave the amplitude of magnetising field H₀ and the amplitude of electric field E₀ at any place are related as : 

Out of the following options which one can be used to produce a propagating electromagnetic wave ?

In an electromagnetic wave, $E=1.2\sin (2\times {10}^{6}t-kx) \mathrm{N} {\mathrm{C}}^{-1}$. Find the value of intensity of magnetic field.

A point source of power $15 \mathrm{W}$ is placed at a certain point in the space. The amplitude of magnetic field at a distance of $2 \mathrm{meter}$ from source is,

In EM wave, $E=50\sin (\omega t-kx)$. If $\mu =4{\mu }_0$ and $\epsilon ={\epsilon }_0$, then average power per unit area is,

If $\overrightarrow{H}=-2\cos \left(\omega t-kz\right)\hat{\mathrm{i}}$ in an EM wave propagating along $+Z$-axis, then electric field is given by,