JEE Main 2021 — Electromagnetic Waves Question with Solution
From: JEE Main 2021 (Online) 17th March Evening Shift
Question
The electric field intensity produced by the radiation coming from a 100 W bulb at a distance of 3 m is E. The electric field intensity produced by the radiation coming from 60W at the same distance is E. Where the value of x = ____________.
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Show full solutionCorrect answer: 3
Correct answer
3
Step-by-step explanation
So the value of x = 3
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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.