7 Modern physics# This chapter covers many demonstrations in the field of modern physics. 7A quantum effects 7A50 Wave Mechanics 01 deBroglie Applied to Bohr 01 deBroglie Applied to Bohr 02 Tunneling 7A60 X-ray and Electron Diffraction 01 Bragg Scattering 7B atomic physics 7B10 Spectra 01 Balmer Series 7B50 Atomic Models 01 deBroglie Applied to Bohr 7F relativity 7F10 Relativity 01 E = mc^2 (Einstein)