Q3 / 30 · NTA Abhyas (NEET) 2020 · Physics · Electromagnetic Waves

The direction of propagation of electromagnetic wave is along

A
Electric field vector, $E$
B
Magnetic field vector, $B$
Correct answer
C
$\vec{E} \times \vec{B}$
D
$\vec{B} \times \vec{E}$

Solution

The direction of propagation of the electromagnetic wave is always perpendicular to the plane in which

\vec{E}

and

\vec{B}

lies. So the direction is along the direction of

\vec{E} \times \vec{B}

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

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