When the wave of hydrogen atom comes from infinity into the first then the value of wave number is

The ratio of the wave lengths of the first line in the Lyman series of the spectrum of Hydrogen atom and the first line in the Balmer series of the spectrum of He^(+) is

The ratio of the wave lengths of the first line in the Lyman series of the spectrum of Hydrogen atom and the first line in the Balmer series of the spectrum of He^(+) is

The wave number of the first line in the Balmer series of hydrogen atom is 15200 cm^(-1) . What is the wave number of the first line in the Balmer series of Be^(3+) ?

The wave number of the first line in the Balmer series of hydrogen atom is 15200 cm^(-1) . What is the wave number of the first line in the Balmer series of Be^(3+) ?

The wave number of the first line in the Balmer series of hydrogen atom is 15200 cm^(-1) . What is the wave number of the first line in the Balmer series of Be^(3+) ?

The wave front due to a source situated at infinity Is

If the wave number of the first line in the Balmer series of hydrogen atom is 1500cm^(-1) , the wave number of the first line of the Balmer series of Li^(2+) is