CBSE 2024 · Region 3 · Set 3 · Q8 · 1 mark
A plane electromagnetic wave is travelling in air in +x direction. At a particular moment, its electric field $\displaystyle \overrightarrow{\mathrm{E}}$ is along +y direction. At that moment, the magnetic field $\displaystyle \overrightarrow{\mathrm{B}}$ is along:
Official answer
From CBSE’s own marking scheme for this paper.
(B)
z direction and in phase with $\displaystyle \overrightarrow{\mathrm{E}}$
Electromagnetic WavesRemembermcqmedium
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CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.