Question 79: EM waves

Question

In $$\overrightarrow E $$ and $$\overrightarrow K $$ represent electric field and propagation vectors of the EM waves in vacuum, then magnetic field vector is given by :
($$\omega$$ - angular frequency) :

Accepted Answer

Magnetic field vector will be in the direction of $\hat{\mathrm{K}} 	imes \hat{\mathrm{E}}$
magnitude of $B=\frac{E}{C}=\frac{K}{\omega} E$
Or $\overrightarrow{\mathrm{B}}=\frac{1}{\omega}(\overrightarrow{\mathrm{K}} 	imes \overrightarrow{\mathrm{E}})$

Answer

$${1 \over \omega }\left( {\overline K  	imes \overline E } ight)$$

Answer

$$\overline K  	imes \overline E $$

Answer

$$\omega \left( {\overline K  	imes \overline E } ight)$$

Answer

$$\omega \left( {\overline E  	imes \overline K } ight)$$

EM waves

In $\overrightarrow E and \overrightarrow K represent electric field and propagation vectors of the EM waves in vacuum, then magnetic field vector is given by : (\omega$ - angular frequency) :

Choose the correct answer: