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?
( CBSE 2007)
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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