Question

In a hydrogen spectrum , λ be the wavelength of first transition line of Lyman series. The wavelength difference will be "aλ" between the wavelength of 3^rd transition line of Paschen series and that of 2^nd transition line of Balmer Series where a =  ___.

Answer 1

For first line of Lyman

3^rd line(Paschen)

2^nd line(Balmer)