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DUMET Medical DUMET Medical Solved Paper-2002

  • question_answer
    A convex lens forms a real image of an object for its two different positions on the screen. If height of the images in two cases are 8 cm and 2 cm, then the height of the object will be :

    A)  2 cm         

    B)  4 cm

    C)  8 cm         

    D)  16 cm

    Correct Answer: B

    Solution :

    Taking the displacement method into consideration, we have Height of object \[d=\sqrt{{{d}_{1}}{{d}_{2}}}\]=^/8x 2 \[=\sqrt{8\times 2}\] = 4 cm


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