NEET2026Physics
Q.
Match List I with List II :
| List I (Electromagnetic wave) | List II (Production) |
|---|---|
| A. Microwave | I. Electrons in atoms emit light when they move from a higher energy level to a lower energy level |
| B. Visible light | II. Radioactive decay of nucleus |
| C. Gamma rays | III. Vibration of atoms and molecules |
| D. Infra-red rays | IV. Klystron valve or magnetron valve |
Choose the correct answer from the options given below:
- A
A-IV, B-III, C-II, D-I
- B
A-III, B-IV, C-I, D-II
- C
A-III, B-I, C-II, D-IV
- D
A-IV, B-I, C-II, D-III
Solution
Microwaves are produced by Klystron or magnetron valves, so A → IV.
Visible light arises from electronic transitions in atoms, so B → I.
Gamma rays come from radioactive decay of nuclei, so C → II.
Infra-red rays are produced by vibrations of atoms and molecules, so D → III.
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