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AIIMS AIIMS Solved Paper-2003

  • question_answer
    In an experiment of find the focal length of a concave mirror, a graph is drawn between the magnitudes of u and v. The graph looks like:

    A)

    B)

    C)        

    D)                                                

    Correct Answer: C

    Solution :

    In case of concave mirror, when we move the object from infinity to focus of the mirror (i.e., u decreases from \[\Omega \] to f) the image moves from focus to \[\Omega \] (i.e., v increases from f to \[1:{{2}^{1/3}}\]). Therefore, the graph looks like the curve shown in Fig. .


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