New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Parabolic mirros are used in

    –
    A Car headlights Correct Answer Incorrect Answer
    B Driving mirrors Correct Answer Incorrect Answer
    C Dentists mirros Correct Answer Incorrect Answer
    D Shaving mirros Correct Answer Incorrect Answer

    Solution

    A parabolic reflector (mirror) transforms an incoming plane wave traveling along the axis into a spherical wave converging toward the focus. Since the principles of reflection are reversible, parabolic reflectors can also be used to project energy of a source at its focus outward in a parallel beam, used in devices such as spotlights and car headlights.

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