JEE Main 2021 — Electromagnetic Waves Question with Solution
From: JEE Main 2021 (Online) 16th March Morning Shift
Question
For an electromagnetic wave travelling in free space, the relation between average energy densities due to electric (Ue) and magnetic (Um) fields is :
Choose an option
Show full solutionCorrect option: A
Correct answer
AUe = Um
Step-by-step explanation
In EMW, average energy density due to electric field (Ue) and magnetic field (Um) is same.
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This is a previous-year question from JEE Main 2021, 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.