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Home  >>  JEEMAIN and NEET  >>  Physics  >>  Class12  >>  Electromagnetic Waves

In an electromagnetic wave travelling in air, the amplitude $E_o$ and $B_o$ of the electric and magnetic fields are related as (here $c$ is the speed of the wave in air)

$\begin {array} {1 1} (a)\;E_o = cB_o & \quad (b)\;E_o = \large\frac{B_o}{c} \\ (c)\;E_o = c^2B_o & \quad (d)\;E_o = B_o \end {array}$


1 Answer

In a E.M wave, the amplitudes of Electric field and magnetic field are related by relation.
$\frac{E_o}{B_o} = c$
$ E_0 = cB_0$
Ans : (a)
answered Feb 25, 2014 by thanvigandhi_1
edited Mar 7 by priyanka.c

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