Question

(15. What electronic transition in the He ion would emit the radiation of the same wavelength as that of
the first line in Lymen series of hydrogen?
(a) n=4 to n=2. (b) n=3 to n = 2. (c) n=5 to n=2. (d) n= 4 ton=3​

Answer 1

Answer:

n=4 to n=2 is the ryt answer