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Electromagnetic Waves

JEE Main level, single correct, medium

122 of 165

Question 122 of 165

Consider an electromagnetic wave propagating in vacuum. Choose the correct statement:

Show answer and solution

Answer: (D) For an electromagnetic wave propagating in + x direction the electric field is $\vec{E}=\dfrac{1}{\sqrt{2}}{E}_{yz}\left(x,t\right)\left(\hat{y}-\hat{z}\right)$ and the magnetic field is $\vec{B}=\dfrac{1}{\sqrt{2}}{B}_{yz}\left(x,t\right)\left(\hat{y}+\hat{z}\right)$

Wave in x - direction means

\vec{E}

and

\vec{B}

should be function of x and t

\left(\hat{y}-\hat{z}\right)\perp \left(\hat{y}+\hat{z}\right)

\left(\vec{E}\times \vec{B}\right)||\hat{x}

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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More Physics practice

JEE Main Physics practice question on Electromagnetic Waves (Electromagnetic Waves and Maxwell's equations), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.