A plane electromagnetic wave is propagating along the direction 2i^+j^, with its polarization along the direction k.^ The correct form of the magnetic field of the wave would be (here B0 is an appropriate constant):
Held on 9 Jan 2020 · Verified 6 Jul 2026.
B02i^−j^cos(ωt−k2i^+j^)
B02j^−i^cos(ωt+k2i^+j^)
B0k^cos(ωt−k2i^+j^)
B02i^+j^cos(ωt−k2i^+j^)
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