JEE Main 2023 — Electromagnetic Waves Question with Solution
From: JEE Main 2023 (Online) 6th April Evening Shift
Question
The energy density associated with electric field and magnetic field of an electromagnetic wave in free space is given by permittivity of free space, permeability of free space)
Choose an option
Show full solutionCorrect option: A
Step-by-step explanation
The energy density associated with the electric field and magnetic field of an electromagnetic wave in free space is given by:
For the electric field:
For the magnetic field:
These expressions match Option A:
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This is a previous-year question from JEE Main 2023, covering the Electromagnetic Waves chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.