NEET Sample Paper NEET Sample Test Paper-50

  • question_answer The objective lens of an astronomical telescope has a focal length of 60 cm and the eyepiece has a focal length of 2 cm. How far apart should the lenses be placed in order to form a final image at infinity?

    A) 62 cm  

    B)   44 cm

    C) 76 cm              

    D) 60 cm

    Correct Answer: A

    Solution :

    \[L=f{{ & }_{0}}+{{f}_{e}}=60+2=62\text{ }cm\]


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