The electric field part of an electromagnetic wave in a medium is represented by array l…
Physics · NEET · NTA Exams — Electromagnetic Waves
The electric field part of an electromagnetic wave in a medium is represented by
\[\begin{array}{l}
E_{x}=0 \\
E_{y}=2.5 \frac{N}{c} \cos \left[\left(2 \pi \cdot 10^{5} \frac{\mathrm{rad}}{5}\right) t-\left(\pi \cdot 10^{-2} \frac{\mathrm{rad}}{\mathrm{~m}}\right) x\right]
\end{array}\]
Ez = 0. The wave is,
- moving along y-direction with frequency \(2 \pi \times 10^{6} \mathrm{~Hz}\) and wavelength 200 m
- moving along x-direction with frequency 106 Hz and wavelength 100 m
- moving along x-direction with frequency 106 Hz and wavelength 200 m
- moving along y-direction with frequency 106 Hz and wavelength 400 m
Answer
(C) moving along x-direction with frequency 10 6 Hz and wavelength 200 m
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