The emission spectra is observed by the consequence of transition of electron from higher energy state to ground state of `He^+` ion. Six different photons are observed during the emission spectra, then what will be the minimum wavelength during the transition?

Options

A. `4/(27R_H)`
B. `4/(15R_H)`
C. `lambda=15/(16R_H)`
D. `16/(15R_H)`

Answer

B