A plane electromagnetic wave travels along +x with wavelength 3 mm. The electric field is along y with amplitude 66 V m⁻¹. Which pair of equations correctly represents the electric and magnetic fields?

Options

• Option A

  E⃗=33 cos[π×10¹¹(t-x/c)] ĵ V m⁻¹; B⃗=1.1×10⁻⁷ cos[π×10¹¹(t-x/c)] k̂ T

• Option B

  E⃗=11 cos[2π×10¹¹(t-x/c)] ĵ V m⁻¹; B⃗=1.1×10⁻⁷ cos[2π×10¹¹(t-x/c)] ĵ T

• Option C

  E⃗=33 cos[π×10¹¹(t-x/c)] î V m⁻¹; B⃗=1.1×10⁻⁷ cos[π×10¹¹(t-x/c)] î T

• Option D

  E⃗=66 cos[2π×10¹¹(t-x/c)] ĵ V m⁻¹; B⃗=2.2×10⁻⁷ cos[2π×10¹¹(t-x/c)] k̂ T