The magnetic field in a plane electromagnetic wave is given by $=2 \times 10^{-7} \sin \left(0.5 \times 10^3 x+1.5 \times 10^{11} t\right)$. This electromagnetic wave is .........
Visible light
Infrared
Microwave
Radiowave
The following travelling electromagnetic wave $E_x=0$ $E_y=E_0 \sin (k x+\omega t), E_z=-2 E_0 \sin (k x-\omega t)$ is
In an electromagnetic wave, at an instant and at a particular position, the electric field is along the negative $z$-axis and magnetic field is along the positive $x$-axis. Then the direction of propagation of electromagnetic wave is
A plane EM wave is propagating along $\mathrm{x}$ direction. It has a wavelength of $4 \mathrm{~mm}$. If electric field is in y direction with the maximum magnitude of $60 \mathrm{Vm}^{-1}$, the equation for magnetic field is:$7$
The magnetic field in a plane electromagnetic wave is given by, $B=3.01 \times 10^{-7} \sin \left(6.28 \times 10^2 \times+2.2 \times 10^{10} t\right) \,T$. [where $x$ in $cm$ and $t$ in second]. The wavelength of the given wave is ....... $cm$
The $rms$ value of the electric field of the light coming from the Sun is $720\;N/C$. The average total energy density of the electromagnetic wave is