JEE Main 2018 — Electromagnetic Waves Question with Solution
From: JEE Main 2018 (Online) 15th April Evening Slot
Question
A plane polarized monochromatic EM wave is traveling in vacuum along z direction such that at t = t1 it is found that the electric field is zero at a spatial point z1. The next zero that occurs in its neighbourhood is at z2. The frequency of the electroagnetic wave is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Since . Here, and . Therefore,
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This is a previous-year question from JEE Main 2018, 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.