Answer the following questions:
(i) An em wave is travelling in a medium with a velocity $\to V = v^i$ . Draw a sketch showing the propagation of the em wave, indicating the direction of the oscillating electric and magnetic fields.
(ii) How are the magnitudes of the electric and magnetic fields related to the velocity of the em wave?

Open in App

Solution

$\to E \times \to B$ represent the direction of propogation of wave.
Refer image,
Graph showing $B$ along $ˆ k$ and $E$ along $ˆ j$
$(b)$ Speed of electromagnetic wave is $V = \frac{E_{0}}{B_{0}}$
Where $E_{0} =$ Magnititude of electric field
$B_{0} =$ Magnititude of magnetic field

Suggest Corrections

Similar questions

E_{0}^j

(^k)

B_{0}

E M

x

6 v o l t / m

+ x

(E)

B

In an EM wave Electric field vector and magnetic field vector are:

Join BYJU'S Learning Program