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The electric field component of an electromagnetic wave in a medium is represented by
Ex = 0;
Ez = 0.
The wave is
A
Moving along X-direction with frequency 10⁶ Hz and wavelength 100 m
B
Moving along X-direction with frequency 10⁶ Hz and wavelength 200 m
C
Moving along Y-direction with frequency 10⁶ Hz and wavelength 200 m
D
Moving along Y-direction with frequency 2π × 10⁶ Hz and wavelength 200 m
Explanation
λ = 2π/k = 2π / (π × 10⁻²) = 200 m
ω = 2π × 10⁶ ⇒ 2πf
f = 10⁶ s⁻¹
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In vacuum, EM wave has energy density 2π × 10⁻⁷ J/m³. Find peak magnetic field.
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