Wavelength emitted by atomic hydrogen in interstellar space - Part of short radio wave of electromagnetic spectrum. Doublet of sodium - visible radiation.
JEE Main 2014 — Physics Modern Physics
2014mcqmedium
Match the List-I (Phenomenon associated with electromagnetic radiation) with List-II (Part of electromagnetic spectrum) and select the correct code from the choices given below this lists: 
Official previous-year question
Held on 11 Apr 2014 · Verified 6 Jul 2026.
Options
- A
(I)-(A), (II)-(B), (III)-(B),,(IV)-(C)
- B
(I)-(A), (II)-(B), (III)-(C), (IV)-(C)
- C
(I)-(D), (II)-(C), (III)-(A), (IV)-(B)
- D
(I)-(B), (II)-(A), (III)-(D), (IV)-(A)
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