Which of the following statement is false for the properties of electromagnetic waves ?
Which of the following statement is false for the properties of electromagnetic waves ?
- A
These waves do not require any material medium for propagation
- B
Both electric and magnetic field vectors attain the maxima and minima at the same place and same time
- C
The energy in electromagnetic wave is divided equally between electric and magnetic field vectors
- D
Both electric and magnetic field vectors are parallel to each other and perpendicular to the direction of propagation of wave
Similar Questions
The electric field associated with an electromagnetic wave propagating in a dielectric medium is given by $\vec{E}=30(2 \hat{x}+\hat{y}) \sin \left[2 \pi\left(5 \times 10^{14} t-\frac{10^7}{3} z\right)\right] \mathrm{V} \mathrm{m}^{-1}$. Which of the following option($s$) is(are) correct?
[Given: The speed of light in vacuum, $c=3 \times 10^8 \mathrm{~ms}^{-1}$ ]
($A$) $B_x=-2 \times 10^{-7} \sin \left[2 \pi\left(5 \times 10^{14} t-\frac{10^7}{3} z\right)\right] \mathrm{Wbm}^{-2}$.
($B$) $B_y=2 \times 10^{-7} \sin \left[2 \pi\left(5 \times 10^{14} t-\frac{10^7}{3} z\right)\right] \mathrm{Wbm}^{-2}$
($C$) The wave is polarized in the $x y$-plane with polarization angle $30^{\circ}$ with respect to the $x$-axis.
($D$) The refractive index of the medium is $2$ .
The electric field associated with an electromagnetic wave propagating in a dielectric medium is given by $\vec{E}=30(2 \hat{x}+\hat{y}) \sin \left[2 \pi\left(5 \times 10^{14} t-\frac{10^7}{3} z\right)\right] \mathrm{V} \mathrm{m}^{-1}$. Which of the following option($s$) is(are) correct?
[Given: The speed of light in vacuum, $c=3 \times 10^8 \mathrm{~ms}^{-1}$ ]
($A$) $B_x=-2 \times 10^{-7} \sin \left[2 \pi\left(5 \times 10^{14} t-\frac{10^7}{3} z\right)\right] \mathrm{Wbm}^{-2}$.
($B$) $B_y=2 \times 10^{-7} \sin \left[2 \pi\left(5 \times 10^{14} t-\frac{10^7}{3} z\right)\right] \mathrm{Wbm}^{-2}$
($C$) The wave is polarized in the $x y$-plane with polarization angle $30^{\circ}$ with respect to the $x$-axis.
($D$) The refractive index of the medium is $2$ .
- [IIT 2023]
In an $EMW$ phase difference between electric and magnetic field vectors $\vec E$ and $\vec B$ is
In an $EMW$ phase difference between electric and magnetic field vectors $\vec E$ and $\vec B$ is
$TV$ waves have a wavelength range of $1-10 \,meter$. Their frequency range in $MHz$ is
$TV$ waves have a wavelength range of $1-10 \,meter$. Their frequency range in $MHz$ is
A radiowave has maximum electric field intensity of $10^{-4}\ V/m$ on arrival at a receiving antenna. The maximum magnetic flux density of such a wave is
A radiowave has maximum electric field intensity of $10^{-4}\ V/m$ on arrival at a receiving antenna. The maximum magnetic flux density of such a wave is
If a source of electromagnetic radiation having power $15 kW$ produces $10^{16}$ photons per second, the radiation belongs to a part of spectrum is.(Take Planck constant $h =6 \times 10^{-34}\,Js$ )
If a source of electromagnetic radiation having power $15 kW$ produces $10^{16}$ photons per second, the radiation belongs to a part of spectrum is.(Take Planck constant $h =6 \times 10^{-34}\,Js$ )
- [JEE MAIN 2023]