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AMU Medical AMU Solved Paper-2000

  • question_answer
    A convergent lens of focal length 5 cm is used as a magnifying glass. If the image is formed at infinity. The magnifying power will be

    A)  5                                            

    B)  4

    C)  6                                            

    D)  10

    Correct Answer: A

    Solution :

                     The magnifying power at infinity                 \[m=\frac{D}{f}\] Given,   D = 25 cm,           \[f=5\,cm\] \[\therefore \]  \[m=\frac{25}{5}=5\]


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