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Question
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
Why do different colours of white light bend through different angles with respect to the incident beam of light?
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Solution
Different colours of white light bend at different angles with respect to the incident beam of light. This is because different colours have different wavelength.
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