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BCECE Engineering BCECE Engineering Solved Paper-2014

  • question_answer
    B. A plano-convex lens has a curved surface of radius of curvature R and refractive index \[\mu \]. If its plane surface is silvered, then, it behaves as a

    A) convex lens                       

    B) convex mirror

    C) concave lens                     

    D) concave mirror

    Correct Answer: D

    Solution :

    It behaves as concave mirror of focal length\[f=\frac{R}{2(\mu -1)}\]


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