Q161 / 180 · KCET 2017 · Physics

If \( \vec{E} \) and \( \vec{B} \) represent electric and magnetic field vectors of an electromagnetic wave, the
direction of propagation of the wave is along

  • A
    \( \vec{E} \)
  • B
    \( \vec{B} \)
  • Correct answer
    C
    \( \vec{E} \times \vec{B} \)
  • D
    \( \vec{B} \times \vec{E} \)

Solution

The direction of proportion of electromagnetic wave is perpendicular to the electric and magnetic field vectors. Therefore,
the direction of propagation of wave is along \( \vec{E} \times \vec{B} \).

Hence, the correct answer is option: 'C'.

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