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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2001

  • question_answer
    In an as trinomial telescope, the focal length of objective lens and eye piece are 150 cm and 6 cm respectively. In normal adjustment the magnifying power is:

    A)  20

    B)  30

    C)  60

    D)  15

    Correct Answer: B

    Solution :

     Given : Focal   length   of   objective   lens \[{{f}_{e}}=180\,cm\] Focal length of eye piece \[{{f}_{e}}=6\,cm\] In the  normal  adjustment,  the magnifying power of telescope is given by \[=\frac{{{f}_{0}}}{{{f}_{e}}}=\frac{180}{6}=30\]


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