Embibe Experts Solutions for Chapter: Electromagnetic Waves, Exercise 1: Gujarat Board-2018

An electromagnetic wave coming from infinity enters a medium from the vacuum. For this wave_____ is independent of the medium ( will not change in the medium)

The wavelength range of heatwave is 

The maximum value of $\overrightarrow{\mathrm{B}}$ in an electromagnetic wave is equal to $6\times {10}^{-8}\mathrm{T}$. Thus the maximum value of $\overrightarrow{E}$ is _____.

For voice communication, cellular phones use which band of the electromagnetic spectrum?

The maximum value of $\overrightarrow{\mathrm{E}}$ in an electromagnetic wave is equal to $1.8 \mathrm{V} {\mathrm{m}}^{-1}$. Thus the maximum value of $\overrightarrow{\mathrm{B}}$ is?

For radiation of $6 \mathrm{GHz}$ passing through air, the wave number (number of wave) per $1 \mathrm{m}$ length is?

Dimension of $\frac{1}{\mu \epsilon }$ is same as the dimension of _____.( $\mu$=magnetic permeability of the medium, $\epsilon =$permittivity of the medium)

A plane electromagnetic wave of frequency $25 \mathrm{MHz}$ travels in free space along the X-direction. At a particular point in space and time, $\overrightarrow{E}=6.3\hat{j} {\mathrm{Vm}}^{-1}$. What is $\overrightarrow{B}$ at this point?