Question

A photon was absorbed by a hydrogen atom in its ground state, and the electron was prompted to the fifth orbit. When the excited atom returned
to its ground state, visible and other quanta were emitted. In this process, how many maximum spectral lines could be obtained-

• A. 1
• B. 2
• C. 5
• D. 10

Answer 1

The correct option is A 1

The emission of visible light invoice transmission to second orbit as it invoice Balmer series (from fifth to second orbital). Thus, emitted atom is second orbital, transmission must be from $2\to 1$ for an atom to return to its ground state.