Part A What is the energy range (in joules and eV) of photons in the visible spectrum, of wavelength 390 nm to 740 nm? Express your answers using two significant figures. Enter your answers numerically separated by a comma Emin. Emax Submit My Answers Give Up Part B Express your answers using two significant figures. Enter your answers numerically separated by a comma 困? Emin. Emax eV Submit My Answers Give Up