An electron in excited hydrogen atom falls from fifth energy level to second energy level. In which of the following regions, the spectral line will be observed and is part of which series of the atomic spectrum ?
A.
Visible, Balmer
B.
Ultraviolet, Lyman
C.
Infrared, Paschen
D.
Infrared, Brackett
Answer :
Visible, Balmer
Solution :
For Balmer series, $${n_1} = 2,{n_2} = 3,4,5,\,....$$
The spectral lines are seen in visible region.
Releted MCQ Question on Physical Chemistry >> Atomic Structure
Releted Question 1
The number of neutrons in dipositive zinc ion with mass number 70 is