JEE Main 2021 — Electromagnetic Waves Question with Solution
From: JEE Main 2021 (Online) 24th February Evening Shift
Question
Match List - I with List - II.
Choose the correct answer from the options given below :
| List I | List II | ||
|---|---|---|---|
| (a) | Source of microwave frequency | (i) | Radioactive decay of nucleus |
| (b) | Source of infrared frequency | (ii) | Magnetron |
| (c) | Source of Gamma Rays | (iii) | Inner shell electrons |
| (d) | Source of X-rays | (iv) | Vibration of atoms and molecules |
| (v) | LASER | ||
| (vi) | RC circuit |
Choose the correct answer from the options given below :
Choose an option
Show full solutionCorrect option: B
Correct answer
B(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
Step-by-step explanation
(a) Source of microwave frequency - (ii) Magnetron
(b) Source of infra red frequency - (iv) Vibration of atom and molecules
(c) Source of gamma ray - (i) Radio active decay of nucleus
(d) Source of X-ray - (iii) inner shell electron
(b) Source of infra red frequency - (iv) Vibration of atom and molecules
(c) Source of gamma ray - (i) Radio active decay of nucleus
(d) Source of X-ray - (iii) inner shell electron
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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.