Question:
10 kg ms 2013 The wavelength of the first spectral line in
Last updated: 6/4/2023
10 kg ms 2013 The wavelength of the first spectral line in the Balmer series of hydrogen atom is 6561 A The wavelength of the second spectral line in the Balmer series of singly ionized helium atom is A 1215 A C 2430 A B 1640 A D 4687 A 2011 A