A narrow beam of light produces a spectrum XY on passing through a triangular glass prism.
(a) State the colour at X and Y.
(b) Why do the different components of white light bend through different angles with respect to the incident beam of light?
The splitting of colours of white light is due to dispersion.
a) The colour of X is Violet and the colour of Y is Red.
b) Due to the difference in wavelength and speed of each colour they deviate at different angles.
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