The photograph of the emission spectrum of sodium shows a single bright yellow line. In fact there are two emission lines,but they are so close together that the picture would have to be enlarged to a length of at least 2 metres before they became distinguishable. The yellow glow of sodium street lights is due to excited sodium atoms emitting light at this wavelength | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Imperial College / Physics Department |
Bildgröße: | 3889 px × 2480 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |