Absorbtion spectra can be be observed by passing a WHite light ( light containing Wavelength from appx. 400nm to 700nm). Now here's My confusion! if We pass this Light from Hydrogen, It should not show dark lines in continous band. ..... (as to obsorb the Light of Visible region, It's electron first need to reach the second orbit. Only then it can obsorb the frequencies of Visible region.) now to reach second orbit, It needs wavelength corresponding to UV region, but white light doesnt have it. No article or Textbooks mention any such case! Can someone please help me clearing this doubt.