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

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