First slide

Introduction-Electromagnetic waves

Question

A plane electromagnetic wave propagating along x-direction can have the following pairs of $\bar{E} and \bar{B}$

Easy

A

$E x, B y & E y, B x$
B

$E y, B z & E z, B y$
C

$E x, B x & E y, B y$
D

$E z, B z & E y, B y$

Solution

An electric and magnetic field vectors $\bar{E} and \bar{B}$ are perpendicular to each other as well as perpendicular to the direction of electromagnetic wave. Hence option (2) is correct

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