Modern Physics 1 Question 15
12. Hydrogen , deuterium , singly ionised helium and doubly ionised lithium all have one electron around the nucleus. Consider an electron transition from to . If the wavelengths of emitted radiation are and , respectively for four elements, then approximately which one of the following is correct?
(a)
(2014 Main)
(b)
(c)
(d)
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Solution:
- For hydrogen atom, we get