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    Question

    For which colour the refractive index of light

    is highest?
    A Red Correct Answer Incorrect Answer
    B Green Correct Answer Incorrect Answer
    C Blue Correct Answer Incorrect Answer
    D Violet Correct Answer Incorrect Answer

    Solution

    The refractive index of light is highest for violet light. In a phenomenon known as dispersion, different colours of light are refracted (bent) by different amounts when they pass through a transparent material, such as glass or a prism. This causes them to spread out into a spectrum.

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