| List-I | List-II |
|---|---|
| A. Radio-wave | I. is produced by Magnetron valve |
| B. Micro-wave | II. due to change in the vibrational modes of atoms |
| C. Infrared-wave | III. due to inner shell electrons moving from higher energy level to lower energy level |
| D. X-ray | IV. due to rapid acceleration of electrons |
(A) A-IV, B-II, C-I, D-III
(B) A-IV, B-III, C-I, D-II
(C) A-IV, B-I, C-II, D-III
(D) A-II, B-IV, C-III, D-I
Correct Answer: (C) A-IV, B-I, C-II, D-III
Radio waves are produced due to rapid acceleration of electrons in antennas.
Microwaves are produced using a magnetron valve.
Infrared waves originate due to vibrational motion of atoms and molecules.
X-rays are produced when inner shell electrons transition from higher energy levels to lower energy levels.
Hence, the correct matching is:
A → IV, B → I, C → II, D → III
Updated for JEE Main 2026: This PYQ is important for JEE Mains, JEE Advanced and other competitive exams. Practice more questions from this chapter.