colour, temperature and emission spectra

Today we looked at emission spectra from different light sources; mercury, sodium, cadmium and oxygen discharge tubes, using a handheld spectroscope.

Here is a video that shows you how to make a basic spectroscope at home.  There are lots of guides like this online.  You might prefer to make a larger spectroscope by using a Pringles tub rather than an old toilet roll holder as the main tube.

I have attached the handout on colour and emission of light from different elements below.

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