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CMC Medical CMC-Medical VELLORE Solved Paper-2007

  • question_answer
    A concave mirror of focal length f in vacuum is placed in a medium of refractive index 2. Its focal length in the medium is

    A)  \[\frac{f}{2}\]                                  

    B)  \[f\]

    C)  \[2f\]                                   

    D)  \[4f\]

    Correct Answer: B

    Solution :

                    Focal length of mirror is independent of the refractive index of medium in which it is placed.


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