Question:medium

For a plane electromagnetic wave travelling in free space along X-axis, the magnetic field at a particular point in space is $\vec{B} = 2.1 \times 10^{-8} \hat{k} \, T$. The magnitude of the electric field at this point is

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Remember: $E = cB$. Electric field is much stronger in magnitude (in SI units) than the magnetic field for an EM wave.

Updated On: Mar 31, 2026

$0.7 Vm^{-1}$
$18.9 Vm^{-1}$
$1.7 Vm^{-1}$
$6.3 Vm^{-1}$

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The Correct Option is D

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