an atom is assumed to have zero energy in the ground state and it's energy in the first, second and third state are 1.625×10^-18j,1.938×10^-18j,2.024×10^-18 j, respectively.a. what is the wavelength of the proton which would excite the atom from the first excited state to the second excited state. b. a blue line of wavelength 5.17×10-7 is observed in the spectrum of this atom. the transition between which energy level will give rise to this spectra line ​