NEET 2026 (Phase 1) · PhysicsSpectrum sourcesPrevious Year Question
Match List I (Electromagnetic wave) with List II (Production) and choose the correct match. List I (A) Microwave (B) Visible light (C) Gamma rays (D) Infrared List II (I) Electron transitions in atoms (II) Radioactive decay (nuclear transitions) (III) Vibration of atoms and molecules (IV) Klystron or magnetron valve Choose the correct match:
- A.A-III, B-I, C-II, D-IV
- B.A-III, B-IV, C-I, D-II
- C.A-IV, B-I, C-II, D-III✓
- D.A-IV, B-III, C-II, D-I
Correct Answer
(C) A-IV, B-I, C-II, D-III
Solution & Explanation
Answer: (C) A-IV, B-I, C-II, D-III. Microwaves are produced by special vacuum tubes (klystron/magnetron). Visible light arises from electron transitions in atoms. Gamma rays come from nuclear/radioactive decay. Infrared is produced by vibration of atoms and molecules.
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