To demonstrate that white light is composed by all seven spectral colours. It comprises a multicoloured card or tin sheet mounted on a stand, driven by a hand wheel. When the disc is rotated rapidly it gives impression of white, thus demonstrating that white light is composed of all spectral colours.
Cat. No.
DescriptionÂ
A
With coloured disc. 150mm dia, & mounted on Laminated wooden base.
B
With coloured disc. 200mm dia, & mounted on Laminated wooden base.
C
With coloured disc. 150mm dia, & mounted on light metal base.
Useful for classroom demonstration and laboratory observations. Instrument provides a wide spectrum of any visible light source. Both emission and absorption spectra can be viewed. Features a 10x10mm Amici type 3-element prism train, telescopic focusing housed in brass body and variable optical slit adjustable by knurled head rotating ring. Wooden storage case included.