Physics · 2024
JEE Main · 9 April 2024, Shift 1 · Q44
A plane EM wave is propagating along x direction. It has a wavelength of 4 mm. If electric field is in y direction with the maximum magnitude of 60…
A plane EM wave is propagating along $\displaystyle x$ direction. It has a wavelength of $\displaystyle 4$ mm . If electric field is in $\displaystyle y$ direction with the maximum magnitude of $\displaystyle 60 \mathrm{Vm}^{-1}$, the equation for magnetic field is :
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle \mathrm{B}_z=2 \times 10^{-7} \sin \left[\frac{\pi}{2} \times 10^3\left(x-3 \times 10^8 \mathrm{t}\right)\right] \hat{\mathrm{k}} \mathrm{~T}$
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JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.