Absorption • Analysis • Applications • Art • Atomic • Both • Certain • Colors • Complementary • Conductivity • Destructive • Diffraction • Emitted • Forensic • From • Gases • High • How • Include • Infrared • Interacts • Its • Laser • Levels • Mainly • Measure • Measures • Molecular • Non • Off • Particles • Passing • Primarily • Provide • Radio • Resolution • Reveals • Rotational • Scattered • Shift • Slit • Solids • Spectroscope • Using • Various • Vibrational • Vibrations • Where • Whereas • Works