His work under Max Planck resulted in his doctoral thesis over the interference features at flat-parallel plates and his important contributions to the coherence of light waves and the Compton effect.  
His work under Max Planck resulted in his doctoral thesis over the interference features at flat-parallel plates and his important contributions to the coherence of light waves and the Compton effect.  Originally working for the government on vacuum tubes for wireless communication, Sommerfeld and Wien objected to his most important result, although he proved a mathematical formulation of it after its experimental proof.  Showing that only at right angles would a beam of X- rays result in diffraction, for ten points, name this German scientist, winner of the 1914 Nobel Prize in Physics.
His work under Max Planck resulted in his doctoral thesis over the interference features at flat-parallel plates and his important contributions to the coherence of light waves and the Compton effect.  
Max von Laue