Question:
Match List - I with List - II.
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 :
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 :
Show Hint
Recall the standard source of each EM radiation: microwaves from a magnetron, infrared from molecular vibrations, gamma rays from nuclear decay, X-rays from inner-shell electron transitions.
Updated On: Nov 4, 2026
- (a)-(vi), (b)-(v), (c)-(i), (d)-(iv)
- (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
- (a)-(ii), (b)-(iv), (c)-(vi), (d)-(iii)
- (a)-(vi), (b)-(iv), (c)-(i), (d)-(v)
Show Solution
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The Correct Option is B
Solution and Explanation
(a) Microwaves are produced by special vacuum tubes such as the klystron, magnetron or Gunn diode, so (a) matches (ii) Magnetron.
(b) Infrared waves are produced by hot bodies and by the vibration of atoms and molecules, so (b) matches (iv).
(c) Gamma rays are emitted in the radioactive decay of a nucleus, so (c) matches (i).
(d) X-rays are produced when inner-shell electrons undergo transitions (or when fast electrons strike a metal target), so (d) matches (iii).
The set (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii) is option (2).
Answer: (2) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
(b) Infrared waves are produced by hot bodies and by the vibration of atoms and molecules, so (b) matches (iv).
(c) Gamma rays are emitted in the radioactive decay of a nucleus, so (c) matches (i).
(d) X-rays are produced when inner-shell electrons undergo transitions (or when fast electrons strike a metal target), so (d) matches (iii).
The set (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii) is option (2).
Answer: (2) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
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