JEE Main 2014 — Electromagnetic Waves Question with Solution
JEE Main 2014 (11 Apr Online)
Question
An electromagnetic wave of frequency hertz is propagating along -axis. The amplitude of electric field is . If , then average energy density of electric field will be:
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Given: Amplitude of electric field,
Absolute permitivity,
Average energy density ?
Applying formula,
Average energy density
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This is a previous-year question from JEE Main 2014, 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.