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JEE Main & Advanced Physics Ray Optics Question Bank Refraction at Curved Surface

  • question_answer
    A diminished image of an object is to be obtained on a screen 1.0 m from it. This can be achieved by appropriately placing                                                                      [IIT JEE 1995]

    A)            A convex mirror of suitable focal length

    B)            A concave mirror of suitable focal length

    C)            A concave lens of suitable focal length

    D)            A convex lens of suitable focal length less than 0.25 m

    Correct Answer: D

    Solution :

               Convex mirror and concave lens do not form real image. For concave mirror \[v>u\], so image will be enlarged, hence only convex lens can be used for the purpose.


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