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Match List-I with List-II List-I (a) Source of microwave frequency (b) Source of infrared frequency (c) Source of Gamma Rays (d) Source of Gamma Rays List-II (i) Radioactive decay on nucleus (ii) Magnetron (iii) Inner shell electrons (iv) Vibration of atoms and molecules (v) LASER (vi) RC circuit Choose the correct answer from the options given below :

1. (a)-(vi), (b)-(iv), (c)-(i), (d)-(v)
2. (a)-(vi), (b)-(v), (c)-(i), (d)-(iv)
3. (a)-(ii), (b)-(iv), (c)-(vi), (d)-(iii)
4. (a)-(ii), (b)-(v), (c)-(i), (d)-(iii)

Correct answer: (a)-(ii), (b)-(v), (c)-(i), (d)-(iii)

Solution

The correct option matches each frequency source accurately: microwaves are generated by magnetrons (ii), infrared frequencies are produced by lasers (v), and gamma rays originate from radioactive decay in the nucleus (i), while the second gamma ray source is also linked to inner shell electron transitions (iii). This alignment reflects the fundamental principles of how these electromagnetic waves are produced.

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