In an electromagnetic wave electric field vector and magnetic field vector are given as vec{E}=E_{0}

English

Gujarati

Hindi

8.Electromagnetic waves

medium

In an electromagnetic wave the electric field vector and magnetic field vector are given as $\vec{E}=E_{0} \hat{i}$ and $\vec{B}=B_{0} \hat{k}$ respectively. The direction of propagation of electromagnetic wave is along.

A

$\hat{j}$

B

$(\hat{k})$

C

$(-\hat{k})$

D

$(-\hat{j})$

(JEE MAIN-2021)

Solution

Direct of propagation $=\vec{E} \times \vec{B}=\hat{i} \times \hat{k}=-\hat{j}$

Standard 12

Physics

Share

Similar Questions

Aplane electromagnetic wave is incident on a plane surface of area A normally, and is perfectly reflected. If energy $E$ strikes the surface in time $t$ then average pressure exerted on the surface is ( $c=$ speed of light)

easy

Write characteristics of electromagnetic waves.

medium

The electric field of a plane electromagnetic wave is given by $\overrightarrow{ E }= E _{0}(\hat{ x }+\hat{ y }) \sin ( kz -\omega t )$ Its magnetic field will be given by

medium

(JEE MAIN-2020)

Light wave is travelling along $y-$ direction. If the corresponding $\vec E$ vector at any time is along the $x-$ axis, the direction of $\vec B$ vector at that time is along

easy

In an apparatus, the electric field was found to oscillate with an amplitude of $18 V/m. $ The magnitude of the oscillating magnetic field will be

easy