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level: Tools for colour in depth

Questions and Answers List

Question	Answer
What is the name of the tool that contains 5 connected glass prisms?	Prism spectroscope
What must the glass prisms be in a prism spectroscope to avoid confusing readings?	Singly refractive
Various parts of the prism spectroscope come into focus at slightly different distances from the... ?	Eyepiece
The dispersion of colours by the prism spectroscope is not _____ througout the spectrum.	Equal
The prism spectroscope produces one strong bright ________ .	Spectrum
What is the type of spectroscope that produces a more observale spectrum using parrallel lines?	Diffraction Grating
The diffraction grating spectroscope produces a linear spectrum, meaning all the wavelengths are equally _________ .	Separated
True or false - All coloured gemstones have absorption spectra seen via a spectroscope?	False
True or false - Some colourless gem materials still show absorption spectra?	True
Pleochroism in some gem materials can show different absorption patterns in different __________ .	Directions
What is the name of the tool that has a calcite block encased in a tube, with an aperture at one end, and a lens at the other?	Calcite Dichroscope
Calcite is ideal to use for a dichroscope because it has a very high _____________ and shows two clear images.	Birefringence