The Total solution for NCERT class 6-12
A plane electromagnetic wavetravels in vacuum along z-direction. What can you say about the directions ofits electric and magnetic field vectors? If the frequency of the wave is 30MHz, what is its wavelength?
The electromagnetic wave travelsin a vacuum along the z-direction. The electric field (E)and the magnetic field (H) are in the x-y plane.They are mutually perpendicular.
Frequencyof the wave, ν = 30 MHz = 30 × 106 s−1
Speed oflight in a vacuum, c = 3 × 108 m/s
Wavelengthof a wave is given as: