JEE Main 2014PhysicsElectromagnetic WavesEasyMCQ

JEE Main 2014 — Electromagnetic Waves Question with Solution

JEE Main 2014 (19 Apr Online)

Question

If microwaves, X‐rays, infrared, gamma rays, ultraviolet, radio waves and visible parts of the electromagnetic spectrum are denoted respectively by M, X, I, G, U, R and V the following is the arrangement in ascending order of the wavelength

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Show full solutionCorrect option: D
Correct answer
DG, X, U, V, I, M and R

Step-by-step explanation

The electromagnetic (EM) spectrum is the range of all types of EM radiation. The γ‐ray has a maximum frequency or minimum wavelength; since the wavelength is inversely proportional to frequency, while radio wave has a minimum frequency and maximum wavelength. The order of wavelength will be; Gamma rays G < X-rays X < Ultra violet U < Visible rays V < Infrared rays I < Microwaves  M < Radio waves R.

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About this question

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.