JEE Main 2020 — Electromagnetic Waves Question with Solution
From: JEE Main 2020 (Online) 5th September Evening Slot
Question
The correct match between the entries in
column I and column II are :
| I | II |
|---|---|
| Radiation | Wavelength |
| (a) Microwave | (i) 100 m |
| (b) Gamma rays | (ii) 10–15 m |
| (c) A.M. radio waves | (iii) 10–10 m |
| (d) X-rays | (iv) 10–3 m |
Choose an option
Show full solutionCorrect option: B
Correct answer
B(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
Step-by-step explanation
Decreasing order of wavelength,
Radio wave > Microwave > Infrared > ROYGBIV(Visiable Resion) > Ultraviolet > X rays > rays
Correct order is
(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
Radio wave > Microwave > Infrared > ROYGBIV(Visiable Resion) > Ultraviolet > X rays > rays
Correct order is
(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
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This is a previous-year question from JEE Main 2020, 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.