What are the two longest wavelength lines (in manometers) in the Lyman series of hydrogen spectrum ?

What are two longest wavelength line (in nano meters) in the Lyman series of hydrogen spectrum? (r=1.097xx10^-2nm^-1)

What is the shortest wave length line (in nanometers) in Lyman series of the hydrogen spectrum?

The ratio of longest wavelength line in the Balmer andaschen series of hydrogen spectrum is

The wavelength of the first spectral line of the Lyman series of hydrogen spectrum is

Assuming Rydberg’s constant ( R_H ) to be 109670 cm^(–1) , the longest wavelength line in the Lyman series of the hydrogen spectrum (in Å) is:

Assuming Rydberg’s constant ( R_H ) to be 109670 cm^(–1) , the longest wavelength line in the Lyman series of the hydrogen spectrum (in Å) is:

Find longest wavelength in Lyman series of hydrogen atom spectrum