lyman-was-able-to-see-emission-lines-with-nf-1-in-the-ultraviolet-region-why-are

Question

Lyman was able to see emission lines with n_f = 1 in the ultraviolet region. Why are n_f =2 not observed?

Accepted Answer

Because transitions to n_f = 2 produce emission lines that lie in the visible portion.

Answer

Because transitions to n_f = 2 produce invisible emission lines

Answer

Because transitions to n_f = 2 produce emission lines that do not exist

Answer

Because transitions to n_f = 2 produce emission lines that lie in the infrared region

Answer

Because transitions to n_f = 2 do not exist