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JEE Main & Advanced Physics Ray Optics Question Bank Spherical Mirror

  • question_answer
    The focal length of a convex mirror is 20 cm its radius of curvature will be                                              [MP PMT 2001]

    A)            10 cm                                      

    B)            20 cm

    C)            30 cm                                      

    D)            40 cm

    Correct Answer: D

    Solution :

               \[f=\frac{R}{2}\Rightarrow R=40\,cm\]


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