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JEE Main & Advanced Physics Ray Optics Question Bank Photometry

  • question_answer
    Figure shows a glowing mercury tube. The illuminances at point A, B and C are related as

    A)            B > C > A

    B)            A > C > B

    C)            B = C > A

    D)            B = C < A

    Correct Answer: D

    Solution :

               By the symmetry of the rays and location of the points.


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