Calculate the wavelength of the first line in the balmer series of hydrogen spectrum

Bohr was the first to explain the structure of hydrogen atom and spectrum. Calculate the wavelength of the first line in the Lyman series of the hydrogen spectrum. ( R= 109677 cm^(-1))

Calculate the wavelength of the first and the last line in the Balmer series of hydrogen spectrum?

Calculate the wavelength of the first and the last line in the Balmer series of hydrogen spectrum?

Calculate the wavelength of the first spectral line of the Balmer series in hydrogen spectra. (Give R_H = 1.09737 cm^(-1) )

What electronic transition in Li^(2+) produces the radiation of same wavelength as the first line in the Balmer's series of Hydrogen spectrum-

Calculate the wavelength of the first and the last line in the Balmer series of the hydrogen spectrum.

Using the Rydberg formula, calculate the wavelength of the first four spectral lines in the Balmer series of the hydrogen spectrum.

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