Electromagnetic WavesHard
Question
The electric and magnetic field, associated with an e.m. wave, propagating along the +z-axis, be represented by
Options
A.

B.

C.

D.

Solution
The electromagnetic wave is propagating along the +z axis
Since the electric and magnetic field are perpendicular to each other and also perpendicular to the direction of propagation of wave.
Also,
gives the direction of the wave propagation.
∴

Since the electric and magnetic field are perpendicular to each other and also perpendicular to the direction of propagation of wave.
Also,
gives the direction of the wave propagation. ∴

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