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

  • question_answer
    A lens of focal power 0.5 D is                                 [JIPMER 1999]

    A)            A convex lens of focal length 0.5 m

    B)            A concave lens of focal length 0.5 m

    C)            A convex lens of focal length 2 m

    D)            A concave lens of focal length 2 m

    Correct Answer: C

    Solution :

               \[P=\frac{1}{f}\Rightarrow f=\frac{1}{0.5}=2m\]


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