### Prateek Asked :

25-09-2021
Electromagnetic Theory

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Q. The vectors of the electromagnetic wave propagation can be expressed in

A. Dot product

B. Cross product

C. Unit vector

D. Perpendicular vector

### Submit Your Answer

Dapzoi

Commented on 2021-09-25 11:31:39 (IST)

Answer: B

Explanation: In an EM wave, the electric and the magnetic fields will be perpendicular to each other and with the direction of the propagation. Thus it can be expressed in cross product where iE x iH = iw. Here iE is the electric vector component, iH is the magnetic vector component and iw is the vector of the wave propagating.