What are the wavelengths of light emitted by metals depending on their temperature?

The w avelength s of light em itted by met als depend on their temperature and the type of metal . Gener ally , as the temperature of a metal increases , the w avelength s of light it em its also increase . This is because the elect rons in the metal gain energy and move to higher energy levels , which causes them to emit light at longer w avelength s . \n \n D ifferent met als have different band gaps , which are the energy differences between the highest and lowest energy levels of their elect rons . The band gap determines the temperature at which a metal begins to emit light . For example , met als with a small band gap , such as copper and silver , begin to emit light at relatively low temperatures , while met als with a large band gap , such as alumin um and tit an ium , do not emit to emit light until much higher temperatures . \n \n The w avelength s of light em itted by met als can also be affected by the presence of imp ur ities or defect s in the metal . These can cause the metal to emit light at different w avelength s or to emit light more intens ely . \n \n Over all , the w avelength s of light em itted by met als are a complex and mult if ac eted topic , and there is still much to learn about this area of research . </s>