Electromagnetic Spectrum & Atmosphere
Match List I with List II:
Choose the correct answer from the options given below:
| 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 |
Show answer and solution
Answer: (c)
- Microwaves: produced by klystron or magnetron valve (IV).
- Visible light: electrons in atoms jumping from higher to lower energy level (I).
- Gamma rays: radioactive decay of nucleus (II).
- Infra-red: vibration of atoms and molecules (III).
- So the answer is (c) A-IV, B-I, C-II, D-III.