Question

    In optics, the refractive index of a substance is described by the formula n = c/v, where c is:

    A the speed of light in medium Correct Answer Incorrect Answer
    B the centre of curvature Correct Answer Incorrect Answer
    C the radius of the sphere Correct Answer Incorrect Answer
    D the speed of light in vacuum Correct Answer Incorrect Answer

    Solution

    The correct answer is D

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