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    Question

    Which statement about the properties of light and sound

    is incorrect? 
    A Light travels faster in water than in a vacuum. Correct Answer Incorrect Answer
    B Sound travels faster in solids than in gases. Correct Answer Incorrect Answer
    C A convex lens focuses light rays at a focal point. Correct Answer Incorrect Answer
    D The ampere is the unit of electric current. Correct Answer Incorrect Answer

    Solution

    Light travels fastest in a vacuum at approximately 299,792 km/s. In water or any other medium, it slows down due to the medium's refractive properties. This fact highlights the unique behavior of light compared to sound, which indeed travels faster in solids due to better transmission through denser material.

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