Calculate the wavelength in nanometers of the spectral line produced when an election and a hydrogen atom undergoes the transition from energy level n=7 to n= 1

Answer 1

1/λ = 1.097310⁷m^-1 (1n_f² - 1/n_i²)

n_f = final energy level = 1

n_i = initial energy level = 7

1/λ = 1.097310⁷m^-1 (1/49 - 1/1) = 1.075x10⁷m^-1

λ = 9.30x10^-8 m = 93.0 nm