Question:
If the visible region of the spectrum is taken to be
Last updated: 6/27/2023
![If the visible region of the spectrum is taken to be](https://media.kunduz.com/media/sug-question-candidate/20210728115118849474-2164505.jpg?h=512)
If the visible region of the spectrum is taken to be wavelengths longer than 400 nm and shorter than 700 nm the number of lines in the hydrogen spectrum which lie in the visible region is A 2 B 3 C 4 D