For an electromagnetic wave,the amplitude of the magnetic field is $3 \times 10^{-10} \, T$. The amplitude of the associated electric field is:

What is the range of frequency of $EM$ waves that are reflected back by the ionosphere?

Let $E_0$ and $B_0$ denote the amplitude of the electric and magnetic fields of a plane electromagnetic wave in air. The magnitude of the average momentum transferred per unit area and per unit time to a totally absorbing surface is

If a $10 \ W$ bulb emits electromagnetic waves uniformly in all directions,then the intensity of light at a distance $0.5 \ m$ from the source is nearly (in $W \ m^{-2}$)

An electromagnetic wave travels in free space along the $x$-direction. At a particular point in space and time, $\vec{B} = 2 \times 10^{-7} \hat{j} \text{ T}$ is associated with this wave. The value of corresponding electric field $\vec{E}$ at this point is . . . . . . $V$/m. (in $\hat{k}$)

The electric field of an electromagnetic wave in free space is $\overrightarrow{E}=57 \cos \left[7.5 \times 10^6 t-5 \times 10^{-3}(3 x+4 y)\right]\ (4 \hat{i}-3 \hat{j})\ N/C$. The associated magnetic field in Tesla is