Which of the following statement is false for the properties of electromagnetic waves ?
Both electric and magnetic field vectors attain the maxima and minima at the same place and same time
The energy in electromagnetic wave is divided equally between electric and magnetic field vectors
Both electric and magnetic field vectors are parallel to each other and perpendicular to the direction of propagation of wave
These wave do not require any material medium for propagation
In a plane electromagnetic wave, which of the following has/ have zero average/value in one complete cycle?
$(a)$ Magnetic field
$(b)$ Magnetic energy
$(c)$ Electric field
$(d)$ Electric energy
The electromagnetic waves travel in a medium at a speed of $2.0 \times 10^{8}\, m / s$. The relative permeability of the medium is $1.0.$ The relative permittivity of the medium will be
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 $h =6 \times 10^{-34}\,Js$ )
The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to
The amplitude of magnetic field in an electromagnetic wave propagating along $y$-axis is $6.0 \times 10^{-7}\,T$. The maximum value of electric field in the electromagnetic wave is: