2. Calculate the wavelength of the emitted photon from hydrogen for the transition from ni = 3 to nf = 2. What part of the visible spectrum is this wavelength? Visible wavelengths are: Red  700 - 620 nm, Yellow  620 - 560 nm, Green  560 - 500 nm, Blue 500 - 440 nm, and Violet  440 - 400 nm.