Question

A certain electronic transition from an excited state
to ground state of the Hatom in one or more step
gives rise to three lines in the ultra violet region of
the spectrum. How many lines does this transition
produce in the infrared region of the spectrum
(1) 1 (2) 2
(3) 3 (4)4​

Answer 1

Answer:

A certain electronic transition from an excited state to the ground state of the H atom in one or more steps gives rise to four lines in the ultraviolet ...

Let the four lines are observed in the ultraviolet region of the spectrum.These correspond to the transitions 5 → 1,4 → 1,3 → 1 and 2 → 1 The ...