The wavelength of the first line of Lyman series for the hydrogen atom is equal to that of the second line of Balmer series for a hydrogen-like ion. The atomic number Z of hydrogen-like ion is.
3
4
1
2
As we learnt in
Lymen series -
- wherein
When electron jump from higher orbital to 1st energy level
i.e. ground state
AND
Balmer series -
- wherein
When electron jump from higher orbital to n=2 energy level
Lymen series of hydrogen
Second line of Balmer series
According to question,
Option 1)
3
Incorrect
Option 2)
4
Incorrect
Option 3)
1
Incorrect
Option 4)
2
Correct