A narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a specturm XY on a screen. (a) State the colour seen at X and Y. (b) Why do different colours of white light bend through different angles with respect to the incident beam of light ? .

A narrow beam of white light is shown to pass through a triangular gla

1.	A narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a specturm XY on a screen. (a) State the colour seen at X and Y. (b) Why do different colours of white light bend through different angles with respect to the incident beam of light ? .
Answer» SOLUTION :NA