Question
The third line of the Balmer series in the emission spectrum of the hydrogen atom is due to the transition from the
A.
fourth Bohr orbit to the first Bohr orbit
B.
fifth Bohr orbit to the second Bohr orbit
C.
sixth Bohr orbit to the third Bohr orbit
D.
seventh Bohr orbit to the third Bohr orbit.
Answer :
fifth Bohr orbit to the second Bohr orbit
Solution :
In Balmer series, $${n_1} = 2$$ and $${n_2} = 3,4,5$$ So, third line arises by the emission of 5th orbit to 2nd orbit.